evas_render: Ensure proper rendering when objects are on planes

evas_render: Ensure proper rendering when objects are on planes

If only objects on planes change, we don't see any damage for the main
buffer, so a page flip never occurs and the plane doesn't update.  For
now forcing a tiny damage area is the easy way to work around this.

Also force a pixels get callback for enlightenment's surface frame
callback tracking.

Signed-off-by: Derek Foreman <derek.foreman.samsung@gmail.com>
Reviewed-by: Cedric BAIL <cedric.bail@free.fr>
Differential Revision: https://phab.enlightenment.org/D7196