[AArch64] Fixup the vget_lane RTL patterns and intrinsics

[AArch64] Fixup the vget_lane RTL patterns and intrinsics

gcc/
	* config/aarch64/aarch64-simd-builtins.def (get_lane_signed): Remove.
	(get_lane_unsigned): Likewise.
	(dup_lane_scalar): Likewise.
	(get_lane): enable for VALL.
	* config/aarch64/aarch64-simd.md
	(aarch64_dup_lane_scalar<mode>): Remove.
	(aarch64_get_lane_signed<mode>): Likewise.
	(aarch64_get_lane_unsigned<mode>): Likewise.
	(aarch64_get_lane_extend<GPI:mode><VDQQH:mode>): New.
	(aarch64_get_lane_zero_extendsi<mode>): Likewise.
	(aarch64_get_lane<mode>): Enable for all vector modes.
	(aarch64_get_lanedi): Remove misleading constraints.
	* config/aarch64/arm_neon.h
	(__aarch64_vget_lane_any): Define.
	(__aarch64_vget<q>_lane_<fpsu><8,16,32,64>): Likewise.
	(vget<q>_lane_<fpsu><8,16,32,64>): Use __aarch64_vget_lane macros.
	(vdup<bhsd>_lane_<su><8,16,32,64>): Likewise.
	* config/aarch64/iterators.md (VDQQH): New.
	(VDQQHS): Likewise.
	(vwcore): Likewise.

gcc/testsuite/
	* gcc.target/aarch64/scalar_intrinsics.c: Update expected
	output of vdup intrinsics.

From-SVN: r201624