[clang] [llvm] [HIP] add --offload-compression-level= option (PR #83605)

[Joseph Huber via cfe-commits]

https://github.com/jhuber6 commented:

Looks fine to me, I'll wait a bit to see if Artem or Fangrui have anything to add.

https://github.com/llvm/llvm-project/pull/83605