bbc9b26788
All KMD/asic_reg/UGL headers are located under the drivers folder. No
need for the AMD_UGL_PATH variable as it essentially is
${AMD_DRIVERS_PATH}/ugl.
Change-Id: I070d737d50f2096493b3e75ef9b9e824cb19d048
[ROCm/clr commit: 1423c1db64]