arm: [MVE intrinsics] rework vrmlaldavhq vrmlaldavhxq vrmlsldavhq vrmlsldavhxq

arm: [MVE intrinsics] rework vrmlaldavhq vrmlaldavhxq vrmlsldavhq vrmlsldavhxq

Implement vrmlaldavhq, vrmlaldavhxq, vrmlsldavhq, vrmlsldavhxq using
the new MVE builtins framework.

2022-10-25  Christophe Lyon  <christophe.lyon@arm.com>

	gcc/
	* config/arm/arm-mve-builtins-base.cc (vrmlaldavhq, vrmlaldavhxq)
	(vrmlsldavhq, vrmlsldavhxq): New.
	* config/arm/arm-mve-builtins-base.def (vrmlaldavhq, vrmlaldavhxq)
	(vrmlsldavhq, vrmlsldavhxq): New.
	* config/arm/arm-mve-builtins-base.h (vrmlaldavhq, vrmlaldavhxq)
	(vrmlsldavhq, vrmlsldavhxq): New.
	* config/arm/arm-mve-builtins-functions.h
	(unspec_mve_function_exact_insn_pred_p): Handle vrmlaldavhq,
	vrmlaldavhxq, vrmlsldavhq, vrmlsldavhxq.
	* config/arm/arm_mve.h (vrmlaldavhq): Remove.
	(vrmlsldavhxq): Remove.
	(vrmlsldavhq): Remove.
	(vrmlaldavhxq): Remove.
	(vrmlaldavhq_p): Remove.
	(vrmlaldavhxq_p): Remove.
	(vrmlsldavhq_p): Remove.
	(vrmlsldavhxq_p): Remove.
	(vrmlaldavhq_u32): Remove.
	(vrmlsldavhxq_s32): Remove.
	(vrmlsldavhq_s32): Remove.
	(vrmlaldavhxq_s32): Remove.
	(vrmlaldavhq_s32): Remove.
	(vrmlaldavhq_p_s32): Remove.
	(vrmlaldavhxq_p_s32): Remove.
	(vrmlsldavhq_p_s32): Remove.
	(vrmlsldavhxq_p_s32): Remove.
	(vrmlaldavhq_p_u32): Remove.
	(__arm_vrmlaldavhq_u32): Remove.
	(__arm_vrmlsldavhxq_s32): Remove.
	(__arm_vrmlsldavhq_s32): Remove.
	(__arm_vrmlaldavhxq_s32): Remove.
	(__arm_vrmlaldavhq_s32): Remove.
	(__arm_vrmlaldavhq_p_s32): Remove.
	(__arm_vrmlaldavhxq_p_s32): Remove.
	(__arm_vrmlsldavhq_p_s32): Remove.
	(__arm_vrmlsldavhxq_p_s32): Remove.
	(__arm_vrmlaldavhq_p_u32): Remove.
	(__arm_vrmlaldavhq): Remove.
	(__arm_vrmlsldavhxq): Remove.
	(__arm_vrmlsldavhq): Remove.
	(__arm_vrmlaldavhxq): Remove.
	(__arm_vrmlaldavhq_p): Remove.
	(__arm_vrmlaldavhxq_p): Remove.
	(__arm_vrmlsldavhq_p): Remove.
	(__arm_vrmlsldavhxq_p): Remove.