[llvm] [RISCV] Add missing RISCVMaskedPseudo for TIED pseudos (PR #86787)

[Wang Pengcheng via llvm-commits]

https://github.com/wangpc-pp approved this pull request.

LGTM.
I don't know if we need it for `VPseudoTiedBinaryRoundingMode`.

https://github.com/llvm/llvm-project/pull/86787