[clang] [llvm] [RISCV] Add Qualcomm uC Xqcisync (Sync Delay) extension (PR #132184)

[Sudharsan Veeravalli via llvm-commits]

svs-quic wrote:

I've already subscribed to pr-subscribers-backend:RISC-V but the change renaming VariantKind to Specifier was directly commited to the repo. Is there a way I can get notified for direct commits as well?

https://github.com/llvm/llvm-project/pull/132184