[clang] [llvm] [Clang] Add env var for nvptx-arch/amdgpu-arch timeout (PR #102521)

[Joseph Huber via llvm-commits]

jhuber6 wrote:

> > Also, just be aware that if you set this, it will apply to everything. So if you had a particularly long link job, probably would be a good idea to make it wait forever.
> 
> Not sure I understand. grep found 2 uses of executeToolChainProgram: calling amdgpu-arch and nvptx-arch. Did I miss a use?

Oh yeah, totally forgot these were separate from the commands, disregard.

https://github.com/llvm/llvm-project/pull/102521