Don't hardcode /opt/rocm in CMakeLists.txt

[suranap]

Most HPC systems use Environment Modules to load libraries. Therefore, the ROCm libraries are loaded explicitly by version: module load rocm/5.6.0. On the systems I've used ROCM_PATH is defined as /opt/rocm-5.6.0. I'd suggest changing these lines to ${ROCM_SOURCE _DIR}/lib.

https://github.com/pytorch/kineto/blob/490f305345b2c06169b02e98418645f3def47b95/libkineto/CMakeLists.txt#L193-L195

[aaronenyeshi]

cc @mwootton @jeffdaily

[sraikund16]

Fixed in #912