drm/amdgpu: handle extra UE register entries for gfx v9_4_3

The UE registe list is larger than CE list.

Reported-by:  <yipeng.chai@amd.com>
Signed-off-by: Tao Zhou <tao.zhou1@amd.com>
Reviewed-by: Stanley.Yang <Stanley.Yang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>