[clang] Correctly link and optimize device libraries with -mlink-builtin-bitcode (PR #69371)

[Joseph Huber via cfe-commits]

https://github.com/jhuber6 approved this pull request.

I'm not entirely happy with the existence of this hack, but it's an ugly solution to an ugly self-inflicted problem, so I can live with it for now.

https://github.com/llvm/llvm-project/pull/69371