[clang] [offload-arch] Fix clangOffloadArch link with BUILD_SHARED_LIBS=ON (PR #229075)

[Nikita Kornev via cfe-commits]

KornevNikita wrote:

> Hi, what's the status of this?

Wanted to see if it passes the pre-commit. Marked as ready.

https://github.com/llvm/llvm-project/pull/229075