[ROCm] guard ROCm-only files in NVFUSER_RUNTIME_FILES (#84312)
Addresses comment in #82498 as a follow-up PR.
https://github.com/pytorch/pytorch/pull/82498#discussion_r958745967
Pull Request resolved: https://github.com/pytorch/pytorch/pull/84312
Approved by: https://github.com/jjsjann123
