re PR tree-optimization/89570 (ICE in prepare_cmp_insn, at optabs.c:4001)

	PR tree-optimization/89570
	* match.pd (vec_cond into cond_op simplification): Don't use
	get_conditional_internal_fn, use as_internal_fn (cond_op).

Co-Authored-By: Richard Sandiford <richard.sandiford@arm.com>

From-SVN: r269391