With recent changes in ROCclr to take HSA cmake target it require
HIP to have CMAKE_PREFIX_PATH added for install location for HSA,
amd_comgr,llvm.
User can provide CMAKE_PREFIX_PATH if above
packages are built/installed at custom location as:
cmake -DCMAKE_PREFIX_PATH="<path_hsa> <path_amd_comgr> <path_llvm>"
For default ROCm installation adding a default path will help.
Change-Id: Iefa443dc198da76b57422a641c9821c63cde4922
[ROCm/hip commit: 6e50c0f755]
Freddy Paul
0f495a009a