drm/amdgpu: add vcn_4_0_3 codec query

Add support for vcn_4_0_3 video codec query

Signed-off-by: Sonny Jiang <sonny.jiang@amd.com>
Reviewed-by: James Zhu <James.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>