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

[Yaxun Liu via cfe-commits]

yxsamliu wrote:

> It may be worth asking on https://github.com/facebook/zstd/ . I am sure zstd maintainers are happy to see more adoption:)

Posted a question to zstd https://github.com/facebook/zstd/issues/3932

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