RISC-V: Upgrade RVV intrinsic version to 0.12

RISC-V: Upgrade RVV intrinsic version to 0.12

Upgrade the version of RVV intrinsic from 0.11 to 0.12.

	PR target/114017

gcc/ChangeLog:

	* config/riscv/riscv-c.cc (riscv_cpu_cpp_builtins): Upgrade
	the version to 0.12.

gcc/testsuite/ChangeLog:

	* gcc.target/riscv/predef-__riscv_v_intrinsic.c: Update the
	version to 0.12.
	* gcc.target/riscv/rvv/base/pr114017-1.c: New test.

Signed-off-by: Pan Li <pan2.li@intel.com>