[llvm] [RISCV] Align MCOperandPredicates with AsmParser (PR #146184)

[Sudharsan Veeravalli via llvm-commits]

https://github.com/svs-quic approved this pull request.

The Xqci specific changes look good to me. Please wait for someone else to review the rest.

https://github.com/llvm/llvm-project/pull/146184