Add GC 11.0.1 gfx support to gfx11 implementation.

v2: squash in golden regs
Signed-off-by: NHuang Rui <ray.huang@amd.com>
Reviewed-by: NAaron Liu <aaron.liu@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>