[clang] [Clang][OpenMP][Driver] Make linker to link Device RTL when built for SPIRV (PR #180066)

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fineg74 wrote:

> LGTM, can you change the PR title to have the prefix `[Clang][OpenMP][Driver]` instead of `[OFFLOAD]`? thanks

Done

https://github.com/llvm/llvm-project/pull/180066