[PATCH AArch64] Fix aarch64_simd_valid_immediate for Bigendian

gcc/

	* config/aarch64/aarch64.c (aarch64_simd_valid_immediate): Reverse
	order of elements for big-endian.



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@208814 138bc75d-0d04-0410-961f-82ee72b054a4