arc: Update arc's gas tests

arc: Update arc's gas tests

The disassembler can recognize the alternative register names ILINK1
and ILINK2.  Update tests.

gas/testsuite/gas/arc
xxxx-xx-xx  Claudiu Zissulescu <claziss@synopsys.com>

	* gas/testsuite/gas/arc/adc.d: Update ILINK1/INLINK2 reg names.
	* gas/testsuite/gas/arc/add.d: Likewise.
	* gas/testsuite/gas/arc/and.d: Likewise.
	* gas/testsuite/gas/arc/asl.d: Likewise.
	* gas/testsuite/gas/arc/asr.d: Likewise.
	* gas/testsuite/gas/arc/bic.d: Likewise.
	* gas/testsuite/gas/arc/lsr.d: Likewise.
	* gas/testsuite/gas/arc/nps400-1.d: Likewise.
	* gas/testsuite/gas/arc/or.d: Likewise.
	* gas/testsuite/gas/arc/ror.d: Likewise.
	* gas/testsuite/gas/arc/sbc.d: Likewise.
	* gas/testsuite/gas/arc/sub.d: Likewise.
	* gas/testsuite/gas/arc/textinsn3op.d: Likewise.
	* gas/testsuite/gas/arc/warn.exp: Update predicate.
	* gas/testsuite/gas/arc/arc.exp: Likewise.

Signed-off-by: Claudiu Zissulescu <claziss@synopsys.com>