[RISCV][Clang] Add RVV vnsra, vnsrl and vwmul intrinsic functions.

Reviewed By: craig.topper

Authored-by: Roger Ferrer Ibanez <rofirrim@gmail.com>
Co-Authored-by: Zakk Chen <zakk.chen@sifive.com>

Differential Revision: https://reviews.llvm.org/D99525

GitOrigin-RevId: 0a18ea01f19757c7b94bab8d7a9130b78136c6c1
7 files changed