ld: Fix the tls_ie-01 test for arc

The purpose of the test is to look for entries of "foo" and
"bar" in the ".got".  The old "objdump -s ..." has been replaced
with "objdump -D ..." to inspect the final executable.  A sample
output looks like:

------------------------8<------------------------

$ arc-elf32-objdump -D -j .got tls_ie-01

tls_ie-01:     file format elf32-littlearc

Disassembly of section .got:

00002110 <_GLOBAL_OFFSET_TABLE_>:
        ...
    211c:       08 00 00 00        .word   0x00000008
    2120:       0c 00 00 00        .word   0x0000000c

------------------------>8------------------------

ld/
	* testsuite/ld-arc/tls_ie-01.d: Update the dump command.