... not DISPLAY_VGA, because we ignore the VGA subclass with our
class_mask.

It confused me until Chris Wilson clued me up.
Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: NAdam Jackson <ajax@redhat.com>
Signed-off-by: NKeith Packard <keithp@keithp.com>