Moved pmuif/* headers to drivers/gpu/nvgpu/include/nvgpu folder
to support cross platform feature implementation.
Made changes to files which accessed include pmuif/* to reflect
pmuif/* movement changes.
Deleted includes of gk20a.h/pmu_gk20a.h from pmuif/*.h files.
Jira NVGPU-19
Change-Id: Iace4e107c24bdaff08a407eae3b147959173e485
Signed-off-by: Mahantesh Kumbar <mkumbar@nvidia.com>
Reviewed-on: http://git-master/r/1299823
GVS: Gerrit_Virtual_Submit
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>