arm: [MVE intrinsics] factorize vmladav vmladavx vmlsdav vmlsdavx vmladava vmladavax...

arm: [MVE intrinsics] factorize vmladav vmladavx vmlsdav vmlsdavx vmladava vmladavax vmlsdava vmlsdavax

Factorize vmladav, vmladavx, vmlsdav, vmlsdavx, vmladava, vmladavax,
vmlsdava, vmlsdavax builtins so that they use the same parameterized
names.

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

	gcc/
	* config/arm/iterators.md (MVE_VMLxDAVQ, MVE_VMLxDAVQ_P)
	(MVE_VMLxDAVAQ, MVE_VMLxDAVAQ_P): New.
	(mve_insn): Add vmladava, vmladavax, vmladav, vmladavx, vmlsdava,
	vmlsdavax, vmlsdav, vmlsdavx.
	(supf): Add VMLADAVAXQ_P_S, VMLADAVAXQ_S, VMLADAVXQ_P_S,
	VMLADAVXQ_S, VMLSDAVAQ_P_S, VMLSDAVAQ_S, VMLSDAVAXQ_P_S,
	VMLSDAVAXQ_S, VMLSDAVQ_P_S, VMLSDAVQ_S, VMLSDAVXQ_P_S,
	VMLSDAVXQ_S.
	* config/arm/mve.md (mve_vmladavq_<supf><mode>)
	(mve_vmladavxq_s<mode>, mve_vmlsdavq_s<mode>)
	(mve_vmlsdavxq_s<mode>): Merge into ...
	(@mve_<mve_insn>q_<supf><mode>): ... this.
	(mve_vmlsdavaq_s<mode>, mve_vmladavaxq_s<mode>)
	(mve_vmlsdavaxq_s<mode>, mve_vmladavaq_<supf><mode>): Merge into
	...
	(@mve_<mve_insn>q_<supf><mode>): ... this.
	(mve_vmladavq_p_<supf><mode>, mve_vmladavxq_p_s<mode>)
	(mve_vmlsdavq_p_s<mode>, mve_vmlsdavxq_p_s<mode>): Merge into ...
	(@mve_<mve_insn>q_p_<supf><mode>): ... this.
	(mve_vmladavaq_p_<supf><mode>, mve_vmladavaxq_p_s<mode>)
	(mve_vmlsdavaq_p_s<mode>, mve_vmlsdavaxq_p_s<mode>): Merge into
	...
	(@mve_<mve_insn>q_p_<supf><mode>): ... this.