PR97693: Specify required vectype in vectorizable_call

PR97693: Specify required vectype in vectorizable_call

The vectorizable_call part of r11-1143 dropped the required
vectype when moving from vect_get_vec_def_for_operand to
vect_get_vec_defs_for_operand.  This caused an ICE on the
testcase for SVE, because we ended up with a non-predicate
value being passed to a predicate input.

AFAICT this was the only instance of that happening.  The types
seemed to get carried forward for all the other converted calls.

gcc/
	PR tree-optimization/97693
	* tree-vect-stmts.c (vectorizable_call): Pass the required vectype
	to vect_get_vec_defs_for_operand.

gcc/testsuite/
	PR tree-optimization/97693
	* gcc.dg/vect/pr97693.c: New test.