[llvm] [RISCV] Add Qualcomn uC Xqcisync Synchronization And Delay Extension (PR #132200)

[Sudharsan Veeravalli via llvm-commits]

svs-quic wrote:

We already have a PR https://github.com/llvm/llvm-project/pull/132184 up for review that adds this support.

https://github.com/llvm/llvm-project/pull/132200