testsuite: powerpc fold-vec and sse updates.

testsuite: powerpc fold-vec and sse updates.

Recent code generation changes have affected the count of some instructions.
This patch updates the instruction count for fold-vec-extract on P7 and P8.

Also, some of SSE emulation intrinsics only work on LE systems.

gcc/testsuite/ChangeLog:

	* gcc.target/powerpc/fold-vec-extract-char.p7.c: Adjust addi count.
	* gcc.target/powerpc/fold-vec-extract-double.p7.c: Same.
	* gcc.target/powerpc/fold-vec-extract-float.p7.c: Same.
	* gcc.target/powerpc/fold-vec-extract-float.p8.c: Same.
	* gcc.target/powerpc/fold-vec-extract-int.p7.c: Same.
	* gcc.target/powerpc/fold-vec-extract-int.p8.c: Same.
	* gcc.target/powerpc/fold-vec-extract-short.p7.c: Same.
	* gcc.target/powerpc/fold-vec-extract-short.p8.c: Same.
	* gcc.target/powerpc/sse-andnps-1.c: Restrict to LE.
	* gcc.target/powerpc/sse-movhps-1.c: Restrict to LE.
	* gcc.target/powerpc/sse-movlps-1.c: Restrict to LE.
	* gcc.target/powerpc/sse2-andnpd-1.c: Restrict to LE.