x86: Don't display eiz with no scale

Change

67 48 8b 1c 25 ef cd ab 89 	mov    0x89abcdef(,%eiz,1),%rbx

to

67 48 8b 1c 25 ef cd ab 89 	mov    0x89abcdef,%rbx

in AT&T syntax and

67 48 8b 1c 25 ef cd ab 89 	mov    rbx,QWORD PTR [eiz*1+0x89abcdef]

to

67 48 8b 1c 25 ef cd ab 89 	mov    rbx,QWORD PTR ds:0x89abcdef

in Intel syntax.

gas/

	PR gas/26237
	* testsuite/gas/i386/evex-no-scale-64.d: Updated.
	* testsuite/gas/i386/addr32.d: Likewise.
	* testsuite/gas/i386/x86-64-addr32-intel.d: Likewise.
	* testsuite/gas/i386/x86-64-addr32.d: Likewise.

opcodes/

	PR gas/26237
	* i386-dis.c (OP_E_memory): Don't display eiz with no scale
	without base nor index registers.