[ARM] Update knowledge of bfd architectures

Commit c0c468d562649df0f695737262b6230b7a56a4bb updated bfd's knowledge
of Arm architectures to Armv5TEJ and later but missed the list of CPUs
recognized by objdump -d -m<cpu>.

.note.gnu.arm.ident related code is intentionally not updated as build
attributes are a better mechanism to express the ISA in a file. However
this patch adds tests for the existing code since no existing testcase
cover those codepaths. Since I've only ever managed for
bfd_arm_get_mach_from_notes () to have an effect by using objcopy on
a file with a note but no Arm build attribute, the tests make use of
both objcopy actions supported by run_dump_test which requires to have a
ld line as well.

Note that the CPU list in bfd/cpu-arm.c was simply copied over from
GAS' CPU list but sorted alphabetically as already done for existing
entries.

2018-11-27  Thomas Preud'homme  <thomas.preudhomme@linaro.org>

bfd/
	* cpu-arm.c (processors): Add processors known to GAS but missing here
	and reindent.
	(bfd_arm_update_notes): Add comment explaining why the list of
	architectures in the switch should not be updated.
	(architectures): Likewise.

gas/
	* testsuite/gas/arm/cpu-arm1020.d: New testcase.
	* testsuite/gas/arm/cpu-arm1020e.d: Likewise.
	* testsuite/gas/arm/cpu-arm1020t.d: Likewise.
	* testsuite/gas/arm/cpu-arm1022e.d: Likewise.
	* testsuite/gas/arm/cpu-arm1026ej-s.d: Likewise.
	* testsuite/gas/arm/cpu-arm1026ejs.d: Likewise.
	* testsuite/gas/arm/cpu-arm10e.d: Likewise.
	* testsuite/gas/arm/cpu-arm10t.d: Likewise.
	* testsuite/gas/arm/cpu-arm10tdmi.d: Likewise.
	* testsuite/gas/arm/cpu-arm1136j-s.d: Likewise.
	* testsuite/gas/arm/cpu-arm1136jf-s.d: Likewise.
	* testsuite/gas/arm/cpu-arm1136jfs.d: Likewise.
	* testsuite/gas/arm/cpu-arm1136js.d: Likewise.
	* testsuite/gas/arm/cpu-arm1156t2-s.d: Likewise.
	* testsuite/gas/arm/cpu-arm1156t2f-s.d: Likewise.
	* testsuite/gas/arm/cpu-arm1176jz-s.d: Likewise.
	* testsuite/gas/arm/cpu-arm1176jzf-s.d: Likewise.
	* testsuite/gas/arm/cpu-arm2.d: Likewise.
	* testsuite/gas/arm/cpu-arm250.d: Likewise.
	* testsuite/gas/arm/cpu-arm3.d: Likewise.
	* testsuite/gas/arm/cpu-arm6.d: Likewise.
	* testsuite/gas/arm/cpu-arm60.d: Likewise.
	* testsuite/gas/arm/cpu-arm600.d: Likewise.
	* testsuite/gas/arm/cpu-arm610.d: Likewise.
	* testsuite/gas/arm/cpu-arm620.d: Likewise.
	* testsuite/gas/arm/cpu-arm7.d: Likewise.
	* testsuite/gas/arm/cpu-arm70.d: Likewise.
	* testsuite/gas/arm/cpu-arm700.d: Likewise.
	* testsuite/gas/arm/cpu-arm700i.d: Likewise.
	* testsuite/gas/arm/cpu-arm710.d: Likewise.
	* testsuite/gas/arm/cpu-arm7100.d: Likewise.
	* testsuite/gas/arm/cpu-arm710c.d: Likewise.
	* testsuite/gas/arm/cpu-arm710t.d: Likewise.
	* testsuite/gas/arm/cpu-arm720.d: Likewise.
	* testsuite/gas/arm/cpu-arm720t.d: Likewise.
	* testsuite/gas/arm/cpu-arm740t.d: Likewise.
	* testsuite/gas/arm/cpu-arm7500.d: Likewise.
	* testsuite/gas/arm/cpu-arm7500fe.d: Likewise.
	* testsuite/gas/arm/cpu-arm7d.d: Likewise.
	* testsuite/gas/arm/cpu-arm7di.d: Likewise.
	* testsuite/gas/arm/cpu-arm7dm.d: Likewise.
	* testsuite/gas/arm/cpu-arm7dmi.d: Likewise.
	* testsuite/gas/arm/cpu-arm7m.d: Likewise.
	* testsuite/gas/arm/cpu-arm7t.d: Likewise.
	* testsuite/gas/arm/cpu-arm7tdmi-s.d: Likewise.
	* testsuite/gas/arm/cpu-arm7tdmi.d: Likewise.
	* testsuite/gas/arm/cpu-arm8.d: Likewise.
	* testsuite/gas/arm/cpu-arm810.d: Likewise.
	* testsuite/gas/arm/cpu-arm9.d: Likewise.
	* testsuite/gas/arm/cpu-arm920.d: Likewise.
	* testsuite/gas/arm/cpu-arm920t.d: Likewise.
	* testsuite/gas/arm/cpu-arm922t.d: Likewise.
	* testsuite/gas/arm/cpu-arm926ej-s.d: Likewise.
	* testsuite/gas/arm/cpu-arm926ej.d: Likewise.
	* testsuite/gas/arm/cpu-arm926ejs.d: Likewise.
	* testsuite/gas/arm/cpu-arm940t.d: Likewise.
	* testsuite/gas/arm/cpu-arm946e-r0.d: Likewise.
	* testsuite/gas/arm/cpu-arm946e-s.d: Likewise.
	* testsuite/gas/arm/cpu-arm946e.d: Likewise.
	* testsuite/gas/arm/cpu-arm966e-r0.d: Likewise.
	* testsuite/gas/arm/cpu-arm966e-s.d: Likewise.
	* testsuite/gas/arm/cpu-arm966e.d: Likewise.
	* testsuite/gas/arm/cpu-arm968e-s.d: Likewise.
	* testsuite/gas/arm/cpu-arm9e-r0.d: Likewise.
	* testsuite/gas/arm/cpu-arm9e.d: Likewise.
	* testsuite/gas/arm/cpu-arm9tdmi.d: Likewise.
	* testsuite/gas/arm/cpu-arm_any.d: Likewise.
	* testsuite/gas/arm/cpu-cortex-a12.d: Likewise.
	* testsuite/gas/arm/cpu-cortex-a15.d: Likewise.
	* testsuite/gas/arm/cpu-cortex-a17.d: Likewise.
	* testsuite/gas/arm/cpu-cortex-a32.d: Likewise.
	* testsuite/gas/arm/cpu-cortex-a35.d: Likewise.
	* testsuite/gas/arm/cpu-cortex-a5.d: Likewise.
	* testsuite/gas/arm/cpu-cortex-a53.d: Likewise.
	* testsuite/gas/arm/cpu-cortex-a55.d: Likewise.
	* testsuite/gas/arm/cpu-cortex-a57.d: Likewise.
	* testsuite/gas/arm/cpu-cortex-a7.d: Likewise.
	* testsuite/gas/arm/cpu-cortex-a72.d: Likewise.
	* testsuite/gas/arm/cpu-cortex-a73.d: Likewise.
	* testsuite/gas/arm/cpu-cortex-a75.d: Likewise.
	* testsuite/gas/arm/cpu-cortex-a76.d: Likewise.
	* testsuite/gas/arm/cpu-cortex-a8.d: Likewise.
	* testsuite/gas/arm/cpu-cortex-a9.d: Likewise.
	* testsuite/gas/arm/cpu-cortex-m0.d: Likewise.
	* testsuite/gas/arm/cpu-cortex-m0plus.d: Likewise.
	* testsuite/gas/arm/cpu-cortex-m1.d: Likewise.
	* testsuite/gas/arm/cpu-cortex-m23.d: Likewise.
	* testsuite/gas/arm/cpu-cortex-m3.d: Likewise.
	* testsuite/gas/arm/cpu-cortex-m33.d: Likewise.
	* testsuite/gas/arm/cpu-cortex-m4.d: Likewise.
	* testsuite/gas/arm/cpu-cortex-m7.d: Likewise.
	* testsuite/gas/arm/cpu-cortex-r4.d: Likewise.
	* testsuite/gas/arm/cpu-cortex-r4f.d: Likewise.
	* testsuite/gas/arm/cpu-cortex-r5.d: Likewise.
	* testsuite/gas/arm/cpu-cortex-r52.d: Likewise.
	* testsuite/gas/arm/cpu-cortex-r7.d: Likewise.
	* testsuite/gas/arm/cpu-cortex-r8.d: Likewise.
	* testsuite/gas/arm/cpu-ep9312.d: Likewise.
	* testsuite/gas/arm/cpu-exynos-m1.d: Likewise.
	* testsuite/gas/arm/cpu-fa526.d: Likewise.
	* testsuite/gas/arm/cpu-fa606te.d: Likewise.
	* testsuite/gas/arm/cpu-fa616te.d: Likewise.
	* testsuite/gas/arm/cpu-fa626.d: Likewise.
	* testsuite/gas/arm/cpu-fa626te.d: Likewise.
	* testsuite/gas/arm/cpu-fa726te.d: Likewise.
	* testsuite/gas/arm/cpu-fmp626.d: Likewise.
	* testsuite/gas/arm/cpu-i80200.d: Likewise.
	* testsuite/gas/arm/cpu-iwmmxt.d: Likewise.
	* testsuite/gas/arm/cpu-iwmmxt2.d: Likewise.
	* testsuite/gas/arm/cpu-marvell-pj4.d: Likewise.
	* testsuite/gas/arm/cpu-marvell-whitney.d: Likewise.
	* testsuite/gas/arm/cpu-mpcore.d: Likewise.
	* testsuite/gas/arm/cpu-mpcorenovfp.d: Likewise.
	* testsuite/gas/arm/cpu-sa1.d: Likewise.
	* testsuite/gas/arm/cpu-strongarm.d: Likewise.
	* testsuite/gas/arm/cpu-strongarm1.d: Likewise.
	* testsuite/gas/arm/cpu-strongarm110.d: Likewise.
	* testsuite/gas/arm/cpu-strongarm1100.d: Likewise.
	* testsuite/gas/arm/cpu-strongarm1110.d: Likewise.
	* testsuite/gas/arm/cpu-xgene1.d: Likewise.
	* testsuite/gas/arm/cpu-xgene2.d: Likewise.
	* testsuite/gas/arm/cpu-xscale.d: Likewise.
	* testsuite/gas/arm/nop-asm.s: Likewise.
	* testsuite/gas/arm/note-march-armv2.d: Likewise.
	* testsuite/gas/arm/note-march-armv2.s: Likewise.
	* testsuite/gas/arm/note-march-armv2a.d: Likewise.
	* testsuite/gas/arm/note-march-armv2a.s: Likewise.
	* testsuite/gas/arm/note-march-armv3.d: Likewise.
	* testsuite/gas/arm/note-march-armv3.s: Likewise.
	* testsuite/gas/arm/note-march-armv3m.d: Likewise.
	* testsuite/gas/arm/note-march-armv3m.s: Likewise.
	* testsuite/gas/arm/note-march-armv4.d: Likewise.
	* testsuite/gas/arm/note-march-armv4.s: Likewise.
	* testsuite/gas/arm/note-march-armv4t.d: Likewise.
	* testsuite/gas/arm/note-march-armv4t.s: Likewise.
	* testsuite/gas/arm/note-march-armv5.d: Likewise.
	* testsuite/gas/arm/note-march-armv5.s: Likewise.
	* testsuite/gas/arm/note-march-armv5t.d: Likewise.
	* testsuite/gas/arm/note-march-armv5t.s: Likewise.
	* testsuite/gas/arm/note-march-armv5te.d: Likewise.
	* testsuite/gas/arm/note-march-armv5te.d: Likewise.
	* testsuite/gas/arm/note-march-ep9312.d: Likewise.
	* testsuite/gas/arm/note-march-ep9312.s: Likewise.
	* testsuite/gas/arm/note-march-iwmmxt.d: Likewise.
	* testsuite/gas/arm/note-march-iwmmxt.s: Likewise.
	* testsuite/gas/arm/note-march-iwmmxt2.d: Likewise.
	* testsuite/gas/arm/note-march-iwmmxt2.s: Likewise.
	* testsuite/gas/arm/note-march-xscale.d: Likewise.
	* testsuite/gas/arm/note-march-xscale.s: Likewise.

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