[clang] [clang][Driver] Add CLANG_DEFAULT_FRTLIB_ADD_RPATH for HIP/SYCL offload runtime rpath (PR #190213)

[Afzal Patel via cfe-commits]

afzpatel wrote:

Closing this pr. The issue on spack is resolved by adding a missing rocm.cfg file which contains `-frtlib-add-rpath` https://github.com/spack/spack-packages/pull/4769

https://github.com/llvm/llvm-project/pull/190213