RISC-V: testsuite: Add -Wno-psabi to vec_set/vec_extract testcases.

RISC-V: testsuite: Add -Wno-psabi to vec_set/vec_extract testcases.

This fixes some fallout from the recent psabi changes.

gcc/testsuite/ChangeLog:

	* gcc.target/riscv/rvv/autovec/vls-vlmax/vec_extract-1.c: Add
	-Wno-psabi.
	* gcc.target/riscv/rvv/autovec/vls-vlmax/vec_extract-2.c: Dito.
	* gcc.target/riscv/rvv/autovec/vls-vlmax/vec_extract-3.c: Dito.
	* gcc.target/riscv/rvv/autovec/vls-vlmax/vec_extract-4.c: Dito.
	* gcc.target/riscv/rvv/autovec/vls-vlmax/vec_extract-run.c:
	Dito.
	* gcc.target/riscv/rvv/autovec/vls-vlmax/vec_set-1.c: Dito.
	* gcc.target/riscv/rvv/autovec/vls-vlmax/vec_set-2.c: Dito.
	* gcc.target/riscv/rvv/autovec/vls-vlmax/vec_set-3.c: Dito.
	* gcc.target/riscv/rvv/autovec/vls-vlmax/vec_set-4.c: Dito.
	* gcc.target/riscv/rvv/autovec/vls-vlmax/vec_set-run.c: Dito.