[llvm] [RISCV] Support .option (no)autocompress (PR #122483)

[Craig Topper via llvm-commits]

topperc wrote:

Thanks for doing this. Kito and I have talked about something similar in the past. .option rvc has been broken since Zca/Zcf/Zcd was introduced.

https://github.com/llvm/llvm-project/pull/122483