[llvm] [RISCV][NFC] Move Zawrs implementation to RISCVInstrInfoZawrs.td (PR #76940)

[Craig Topper via llvm-commits]

topperc wrote:

> LGTM. I think it's not necessarily the case that every extension should have it's own file

I agree. Adding a file for every extension doesn't scale well if we keep adding extensions at the rate we are.

https://github.com/llvm/llvm-project/pull/76940