[llvm] [Offload] For AMDGPU driver, use product name (PR #155632)

[Joseph Huber via llvm-commits]

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

Assuming this still prints both, because users definitely want to know what to pass to `--offload-arch`

https://github.com/llvm/llvm-project/pull/155632