[llvm] add LZMA for compression/decompression (PR #83297)

[Yaxun Liu via llvm-commits]

yxsamliu wrote:

> This seems to be adding an entirely new compression scheme to LLVM. I feel like that should be a separate patch and the part where we make HIP use it is a follow-up.

Keep this PR for LLVM changes only. Will open another PR for clang changes.

https://github.com/llvm/llvm-project/pull/83297