[llvm] [RISCV] Use SelectAddrRegRegScale for Xqcisls instructions. (PR #145608)

[Sudharsan Veeravalli via llvm-commits]

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

LGTM! There are now more cases where we generate these instructions that we were not previously doing. I have #145644 with the test cases that show the current behavior. We can either integrate them into this PR or I can rebase my PR to show the changes.

https://github.com/llvm/llvm-project/pull/145608