[clang] [Clang] Introduce 'clang-nvlink-wrappaer' to work around 'nvlink' (PR #96561)

[Justin Lebar via cfe-commits]

jlebar wrote:

@Artem-B asked me to review nvptx patches while he's OOO, but this one is pretty far outside my depth.  Are you OK waiting until he's back?  I don't know exactly when that will be, but based on his IMs to me, he should be back early July.

https://github.com/llvm/llvm-project/pull/96561