[clang] [llvm] [RISCV] Xqcia 0.4 Spec renamed qc.(sla/sll)sat to qc.(shl/shlu)sat (PR #128710)

[Sam Elliott via cfe-commits]

https://github.com/lenary approved this pull request.

LGTM. I edited the description for readability, so please use it as the message when squashing this PR.

https://github.com/llvm/llvm-project/pull/128710