Init the ams_smi using the rocm-smi, which makes the GPU discovery
consistent with or without libdrm.
Change-Id: Ic714781f8ce791451b0c057621525926edb7f5ee
Move rocm_smi related function to rocm_smi folder. Move amd_smi to
top level include/ and src/ folder. Remove obsolte oam folder.
Change the CMakeLists.txt to update folder locations.
Change-Id: I52e6be739e49f3b0545865f25364787f5985e9c3