[clang] Add -fuse-lipo option (PR #121231)

[Steven Wu via cfe-commits]

cachemeifyoucan wrote:

> I tried to take precedence from -fuse-ld and --ld-path, so -fuse-lipo takes a name, and a hypothetical future --lipo-path would be a full path. Perhaps these are only named this way due to legacy compatibility though, and new naming conventions should be something else, fuse-lipo-program as you say? I can't find any existing option that ends with -program=, though. I don't know the history and context here. Let me know what I should do!

Make sense to me. 

https://github.com/llvm/llvm-project/pull/121231