4a6f033fd2
Currently all the logic checks if __HIP_ENABLE_PCH is set, so setting it
to OFF will still enable PCH.
Switching __HIP_ENABLE_PCH to be a CMake option will enable correct
build behaviour.
Change-Id: I77a663589ffb5f2595c6ad3d144eb9466adcf250
[ROCm/clr commit: 8034467ec3]