testsuite: enable gcc.target/powerpc direct move tests.

testsuite: enable gcc.target/powerpc direct move tests.

Remove unnecessary requirements for direct-move-* tests.

gcc/testsuite/ChangeLog

2020-06-30  David Edelsohn  <dje.gcc@gmail.com>

	* gcc.target/powerpc/direct-move-double1.c: Remove lp64 requirement.
	* gcc.target/powerpc/direct-move-double2.c: Same.
	* gcc.target/powerpc/direct-move-float1.c: Same.
	* gcc.target/powerpc/direct-move-float2.c: Same.
	* gcc.target/powerpc/direct-move-float3.c: Same.
	* gcc.target/powerpc/direct-move-vint1.c: Same.
	* gcc.target/powerpc/direct-move-vint2.c: Same.
	* gcc.target/powerpc/direct-move-long1.c: Remove linux requirement..
	* gcc.target/powerpc/direct-move-long2.c: Same.