i386: Enhance AMX tests

i386: Enhance AMX tests

After Binutils got changed, the previous usage on intrin will raise
warning for assembler. We need to change that. Besides that, there
are separate issues for both AMX-MOVRS and AMX-TRANSPOSE.

For AMX-MOVRS, t2rpntlvwrs tests wrongly used AMX-TRANSPOSE intrins
in test. Since the only difference between them is the "rs" hint,
it won't change result.

For AMX-TRANSPOSE, "t1" hint test is missing.

This patch fixed both of them. Also changing AMX-MOVRS test file
name to make it match with other AMX tests.

gcc/testsuite/ChangeLog:

	PR target/118270
	PR target/118609
	* gcc.target/i386/amxmovrs-t2rpntlvw-2.c: Move to...
	* gcc.target/i386/amxmovrs-2rpntlvwrs-2.c: ...here.
	* gcc.target/i386/amxtranspose-2rpntlvw-2.c: Add "t1" hint test.