[llvm] [offload] Fix link issues when LLVM_LINK_LLVM_DYLIB on (PR #106583)

[via llvm-commits]

macurtis-amd wrote:

Do you want to get rid of all checks for `LLVM_LINK_LLVM_DYLIB`?
If so, we'll need to rearrange some code since some libraries are added conditionally.

https://github.com/llvm/llvm-project/pull/106583