[AArch64] Fix types of second parameter to qtbl/qtbx intrinsics

[AArch64] Fix types of second parameter to qtbl/qtbx intrinsics

gcc/
	* config/aarch64/arm_neon.h
	(vqtbl<1,2,3,4><q>_s8): Fix control vector parameter type.
	(vqtbx<1,2,3,4><q>_s8): Likewise.

gcc/testsuite/
	* gcc.target/aarch64/table-intrinsics.c
	(qtbl_tests8_< ,2,3,4>): Fix control vector parameter type.
	(qtb_tests8_< ,2,3,4>): Likewise.
	(qtblq_tests8_< ,2,3,4>): Likewise.
	(qtbxq_tests8_< ,2,3,4>): Likewise.

From-SVN: r202327