RISC-V: Use ordered scatter variants.

The vectorizer expects scatters to write in an ordered fashion.
Only the ordered indexed stores offer this, so use them instead of the
unordered ones.

	PR target/126334

gcc/ChangeLog:

	* config/riscv/riscv-v.cc (get_gather_scatter_code): Use ordered
	indexed stores.

gcc/testsuite/ChangeLog:

	* gcc.target/riscv/rvv/autovec/gather-scatter/gather_load_32-1.c:
	Adjust test expectations.
	* gcc.target/riscv/rvv/autovec/gather-scatter/gather_load_32-10.c: Ditto.
	* gcc.target/riscv/rvv/autovec/gather-scatter/gather_load_32-11.c: Ditto.
	* gcc.target/riscv/rvv/autovec/gather-scatter/gather_load_32-12.c: Ditto.
	* gcc.target/riscv/rvv/autovec/gather-scatter/gather_load_32-2.c: Ditto.
	* gcc.target/riscv/rvv/autovec/gather-scatter/gather_load_32-3.c: Ditto.
	* gcc.target/riscv/rvv/autovec/gather-scatter/gather_load_32-4.c: Ditto.
	* gcc.target/riscv/rvv/autovec/gather-scatter/gather_load_32-5.c: Ditto.
	* gcc.target/riscv/rvv/autovec/gather-scatter/gather_load_32-6.c: Ditto.
	* gcc.target/riscv/rvv/autovec/gather-scatter/gather_load_32-7.c: Ditto.
	* gcc.target/riscv/rvv/autovec/gather-scatter/gather_load_32-8.c: Ditto.
	* gcc.target/riscv/rvv/autovec/gather-scatter/gather_load_32-9.c: Ditto.
	* gcc.target/riscv/rvv/autovec/gather-scatter/mask_gather_load_32-1.c: Ditto.
	* gcc.target/riscv/rvv/autovec/gather-scatter/mask_gather_load_32-10.c: Ditto.
	* gcc.target/riscv/rvv/autovec/gather-scatter/mask_gather_load_32-11.c: Ditto.
	* gcc.target/riscv/rvv/autovec/gather-scatter/mask_gather_load_32-2.c: Ditto.
	* gcc.target/riscv/rvv/autovec/gather-scatter/mask_gather_load_32-3.c: Ditto.
	* gcc.target/riscv/rvv/autovec/gather-scatter/mask_gather_load_32-4.c: Ditto.
	* gcc.target/riscv/rvv/autovec/gather-scatter/mask_gather_load_32-5.c: Ditto.
	* gcc.target/riscv/rvv/autovec/gather-scatter/mask_gather_load_32-6.c: Ditto.
	* gcc.target/riscv/rvv/autovec/gather-scatter/mask_gather_load_32-7.c: Ditto.
	* gcc.target/riscv/rvv/autovec/gather-scatter/mask_gather_load_32-8.c: Ditto.
	* gcc.target/riscv/rvv/autovec/gather-scatter/mask_gather_load_32-9.c: Ditto.
	* gcc.target/riscv/rvv/autovec/gather-scatter/mask_scatter_store_32-1.c: Ditto.
	* gcc.target/riscv/rvv/autovec/gather-scatter/mask_scatter_store_32-10.c: Ditto.
	* gcc.target/riscv/rvv/autovec/gather-scatter/mask_scatter_store_32-2.c: Ditto.
	* gcc.target/riscv/rvv/autovec/gather-scatter/mask_scatter_store_32-3.c: Ditto.
	* gcc.target/riscv/rvv/autovec/gather-scatter/mask_scatter_store_32-4.c: Ditto.
	* gcc.target/riscv/rvv/autovec/gather-scatter/mask_scatter_store_32-5.c: Ditto.
	* gcc.target/riscv/rvv/autovec/gather-scatter/mask_scatter_store_32-6.c: Ditto.
	* gcc.target/riscv/rvv/autovec/gather-scatter/mask_scatter_store_32-7.c: Ditto.
	* gcc.target/riscv/rvv/autovec/gather-scatter/mask_scatter_store_32-8.c: Ditto.
	* gcc.target/riscv/rvv/autovec/gather-scatter/mask_scatter_store_32-9.c: Ditto.
	* gcc.target/riscv/rvv/autovec/gather-scatter/mask_scatter_store_64-1.c: Ditto.
	* gcc.target/riscv/rvv/autovec/gather-scatter/mask_scatter_store_64-10.c: Ditto.
	* gcc.target/riscv/rvv/autovec/gather-scatter/mask_scatter_store_64-2.c: Ditto.
	* gcc.target/riscv/rvv/autovec/gather-scatter/mask_scatter_store_64-3.c: Ditto.
	* gcc.target/riscv/rvv/autovec/gather-scatter/mask_scatter_store_64-4.c: Ditto.
	* gcc.target/riscv/rvv/autovec/gather-scatter/mask_scatter_store_64-5.c: Ditto.
	* gcc.target/riscv/rvv/autovec/gather-scatter/mask_scatter_store_64-6.c: Ditto.
	* gcc.target/riscv/rvv/autovec/gather-scatter/mask_scatter_store_64-7.c: Ditto.
	* gcc.target/riscv/rvv/autovec/gather-scatter/mask_scatter_store_64-8.c: Ditto.
	* gcc.target/riscv/rvv/autovec/gather-scatter/mask_scatter_store_64-9.c: Ditto.
	* gcc.target/riscv/rvv/autovec/gather-scatter/scatter_store_32-1.c: Ditto.
	* gcc.target/riscv/rvv/autovec/gather-scatter/scatter_store_32-10.c: Ditto.
	* gcc.target/riscv/rvv/autovec/gather-scatter/scatter_store_32-2.c: Ditto.
	* gcc.target/riscv/rvv/autovec/gather-scatter/scatter_store_32-4.c: Ditto.
	* gcc.target/riscv/rvv/autovec/gather-scatter/scatter_store_32-5.c: Ditto.
	* gcc.target/riscv/rvv/autovec/gather-scatter/scatter_store_32-6.c: Ditto.
	* gcc.target/riscv/rvv/autovec/gather-scatter/scatter_store_32-7.c: Ditto.
	* gcc.target/riscv/rvv/autovec/gather-scatter/scatter_store_32-8.c: Ditto.
	* gcc.target/riscv/rvv/autovec/gather-scatter/scatter_store_32-9.c: Ditto.
	* gcc.target/riscv/rvv/autovec/gather-scatter/scatter_store_64-1.c: Ditto.
	* gcc.target/riscv/rvv/autovec/gather-scatter/scatter_store_64-10.c: Ditto.
	* gcc.target/riscv/rvv/autovec/gather-scatter/scatter_store_64-2.c: Ditto.
	* gcc.target/riscv/rvv/autovec/gather-scatter/scatter_store_64-3.c: Ditto.
	* gcc.target/riscv/rvv/autovec/gather-scatter/scatter_store_64-4.c: Ditto.
	* gcc.target/riscv/rvv/autovec/gather-scatter/scatter_store_64-5.c: Ditto.
	* gcc.target/riscv/rvv/autovec/gather-scatter/scatter_store_64-6.c: Ditto.
	* gcc.target/riscv/rvv/autovec/gather-scatter/scatter_store_64-7.c: Ditto.
	* gcc.target/riscv/rvv/autovec/gather-scatter/scatter_store_64-8.c: Ditto.
	* gcc.target/riscv/rvv/autovec/gather-scatter/scatter_store_64-9.c: Ditto.

(cherry picked from commit 5b0d2e93e1ad39ee6f731abeee2e8846bcf5da93)