amdgpu: add navi family id

Reviewed-by: Tim Writer <Tim.Writer@amd.com>
Signed-off-by: Huang Rui <ray.huang@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Marek Olšák <marek.olsak@amd.com>