[RISCV] Implement intrinsics for XCVbitmanip extension in CV32E40P (#74993)

Implement XCVbitmanip intrinsics for CV32E40P according to the
specification.

This commit is part of a patch-set to upstream the vendor specific
extensions of CV32E40P that need LLVM intrinsics to implement Clang
builtins.

Contributors: @CharKeaney, @ChunyuLiao, @jeremybennett, @lewis-revill,
@NandniJamnadas, @PaoloS02, @simonpcook, @xingmingjie.

Spec:
https://github.com/openhwgroup/core-v-sw/blob/05481cf0ef7aa7b09067b14ff3f71faead7ba310/specifications/corev-builtin-spec.md#listing-of-pulp-bit-manipulation-builtins-xcvbitmanip.

Previously reviewed on Phabricator: https://reviews.llvm.org/D157510.
Parallel GCC patch:
https://gcc.gnu.org/pipermail/gcc-patches/2023-November/635795.html

.

Co-authored-by: melonedo <funanzeng@gmail.com>