compositor-drm: run finish_frame when dpms is turned off in update_complete
A output repaint loop isn't scheduled beacuse the output repaint_status is AWAITING_COMPLETION when dmps is turned off in update_complete(). Therefore, the display attached to the output is remain inactive even if weston wakes up. By going through finish_frame, the output repaint_status is fixed to correct status.
Signed-off-by: Tomohito Esaki firstname.lastname@example.org