We accidentally return success even if vc4_full_res_bounds_check() fails.
Fixes: d5b1a78a772f ("drm/vc4: Add support for drawing 3D frames.") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Reviewed-by: Eric Engestrom <eric@engestrom.ch> Reviewed-by: Eric Anholt <eric@anholt.net>