testsuite: enable and fix swaps-p8 testcases

testsuite: enable and fix swaps-p8 testcases

This patch enables swaps-p8 and a few other testcases on non-powerpc64le
systems.  It also cleans up the target requirements for various testcases.

gcc/testsuite/ChangeLog:

	* gcc.target/powerpc/p9-extract-1.c: Require lp64.
	* gcc.target/powerpc/p9-extract-2.c: Require lp64.
	* gcc.target/powerpc/p9-extract-3.c: Require lp64.
	* gcc.target/powerpc/p9-permute.c: Remove target.
	* gcc.target/powerpc/pr63335.c: Remove target.
	* gcc.target/powerpc/pr87507.c: Remove target.
	* gcc.target/powerpc/swaps-p8-1.c: Require LE and P8.
	* gcc.target/powerpc/swaps-p8-10.c: Remove target. Require P8.
	* gcc.target/powerpc/swaps-p8-11.c: Remove target. Require P8.
	* gcc.target/powerpc/swaps-p8-12.c: Require LE and P8.
	* gcc.target/powerpc/swaps-p8-13.c: Remove target. Require P8.
	* gcc.target/powerpc/swaps-p8-14.c: Remove target. Require P8.
	* gcc.target/powerpc/swaps-p8-15.c: Remove target. Require P8.
	* gcc.target/powerpc/swaps-p8-16.c: Remove target. Require P8.
	* gcc.target/powerpc/swaps-p8-17.c: Require P8.
	* gcc.target/powerpc/swaps-p8-18.c: Remove target. Require P8.
	* gcc.target/powerpc/swaps-p8-19.c: Remove target. Require P8.
	* gcc.target/powerpc/swaps-p8-2.c: Require LE and P8.
	* gcc.target/powerpc/swaps-p8-20.c: Remove target.
	* gcc.target/powerpc/swaps-p8-21.c: Remove target. Require Altivec.
	* gcc.target/powerpc/swaps-p8-22.c: Remove target. Require P8.
	* gcc.target/powerpc/swaps-p8-23.c: Require LE and P8.
	* gcc.target/powerpc/swaps-p8-24.c: Remove target. Require P8.
	* gcc.target/powerpc/swaps-p8-25.c: Require LE and P8.
	* gcc.target/powerpc/swaps-p8-26.c: Remove target. Require P8.
	* gcc.target/powerpc/swaps-p8-27.c: Remove target. Require P8.
	* gcc.target/powerpc/swaps-p8-28.c: Remove target.
	* gcc.target/powerpc/swaps-p8-29.c: Remove target.
	* gcc.target/powerpc/swaps-p8-3.c: Require LE and P8.
	* gcc.target/powerpc/swaps-p8-30.c: Remove target.
	* gcc.target/powerpc/swaps-p8-31.c: Remove target.
	* gcc.target/powerpc/swaps-p8-32.c: Remove target.
	* gcc.target/powerpc/swaps-p8-33.c: Remove target.
	* gcc.target/powerpc/swaps-p8-34.c: Remove target.
	* gcc.target/powerpc/swaps-p8-35.c: Remove target.
	* gcc.target/powerpc/swaps-p8-36.c: Remove target.
	* gcc.target/powerpc/swaps-p8-37.c: Remove target.
	* gcc.target/powerpc/swaps-p8-38.c: Remove target.
	* gcc.target/powerpc/swaps-p8-39.c: Remove target.
	* gcc.target/powerpc/swaps-p8-4.c: Require LE and P8.
	* gcc.target/powerpc/swaps-p8-40.c: Remove target.
	* gcc.target/powerpc/swaps-p8-41.c: Remove target.
	* gcc.target/powerpc/swaps-p8-42.c: Remove target.
	* gcc.target/powerpc/swaps-p8-43.c: Remove target.
	* gcc.target/powerpc/swaps-p8-44.c: Remove target.
	* gcc.target/powerpc/swaps-p8-45.c: Remove target.
	* gcc.target/powerpc/swaps-p8-46.c: Require LE.
	* gcc.target/powerpc/swaps-p8-5.c: Require LE and P8.
	* gcc.target/powerpc/swaps-p8-6.c: Remove target. Require P8.
	* gcc.target/powerpc/swaps-p8-7.c: Remove target. Require P8.
	* gcc.target/powerpc/swaps-p8-8.c: Remove target. Require P8.
	* gcc.target/powerpc/swaps-p8-9.c: Remove target. Require P8.
	* gcc.target/powerpc/vec-cmp.c: Require LP64.
	* gcc.target/powerpc/vec-cmpne.c: Remove target.
	* gcc.target/powerpc/vec-mul.c: Remove target.
	* gcc.target/powerpc/vec-set-char.c: Require LP64.
	* gcc.target/powerpc/vec-set-int.c: Require LP64.
	* gcc.target/powerpc/vec-set-short.c: Require LP64.
	* gcc.target/powerpc/vec-xxpermdi.c: Remove target. Require VSX.
	* gcc.target/powerpc/vsxcopy.c: Remove target. Require VSX.