[llvm] [BOLT] Enable standalone build (PR #97130)

[Tristan Ross via llvm-commits]

RossComputerGuy wrote:

> I've tested it and it didn't work for some reason:

That's because I didn't have it copy. The runtime libs get path method now works to where I didn't have to copy the files.

https://github.com/llvm/llvm-project/pull/97130