[llvm] [AArch64][GISel] Translate legal SVE formal arguments and select COPY for SVE (PR #95236)

[Madhur Amilkanthwar via llvm-commits]

https://github.com/madhur13490 commented:

Does this pass all regression tests? I had the same patch locally but I was seeing some failures. May be my patch had some issues...

https://github.com/llvm/llvm-project/pull/95236