Temporarily comment out Hcc-specific template functions
hipExtLaunchKernelGGL and hipOccupancyMaxPotentialBlockSize for CLang
compiler so that all test cases under hip/samples can be built
successfully for Clang + Hip/Hcc runtime.
Change-Id: Iafc761257be4a7b34eafa6759a01f369570cd6ce
* occupancy.cpp with Makefile
* occupancy sample changes according tothe comments
* Changes according to the review comments
* Occupancy Sample Changes
* Changes according to review comments