Merge tag 'topic/drm-fixes-2015-08-14' of git://anongit.freedesktop.org/drm-intel into drm-next

single MST fixes from Maarten.

* tag 'topic/drm-fixes-2015-08-14' of git://anongit.freedesktop.org/drm-intel:
  drm/dp/mst: Remove port after removing connector.