v2: use gfxip names for llvm 4.0+ v3: use tonga for llvm <= 3.8, drop gfxip name, we can just change that we change the other asics. Reviewed-by: Marek Olšák <marek.olsak@amd.com> Signed-off-by: Junwei Zhang <Jerry.Zhang@amd.com> Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com> Acked-by: Christian König <christian.koenig@amd.com>