[llvm] [clang] [llvm][frontend][offloading] Move clang-linker-wrapper/OffloadWrapper.* to llvm/Frontend/Offloading (PR #78057)

[Joseph Huber via cfe-commits]

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

Thanks. I'll probably make a patch after this to make the surface handling for CUDA default off because it seems to be unsupported.

https://github.com/llvm/llvm-project/pull/78057