drm/amd/display: Loosen plane_info and scaling_info checks

Make it so that differing dcc and plane size fields don't necessarily
result in a full update, along with upscaling modes. This allows us to
save some unnecessary full updates.

Signed-off-by: Andrew Jiang <Andrew.Jiang@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>