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

[via llvm-commits]

macurtis-amd wrote:

> needs a test

Added a check [here](https://github.com/llvm/llvm-project/blob/d493dc59411a59ae8a1c9ef1fa83b30331156369/offload/src/CMakeLists.txt#L73-L133) to ensure that `omptarget` link libraries does not contain a mixture of static and dynamic LLVM libraries when `LLVM_LINK_LLVM_DYLIB` is `ON`.

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