When auto-play is on, EndOfMedia would not be emitted. This is due to
a workaround for mmrenderer, that wrongly ignored stop events.
Once media is played stop events will always have to be processed.

Change-Id: I1cfd665bb06638ee3c86807aecc51e78f9baa938
Reviewed-by: Rafael Roquetto <rafael.roquetto@kdab.com>