Revert "[rbp/omxplayer] When opening a stream don't try to update gui so often"

This reverts commit af0ce2f681197a6e51aa92b46ffd471d679dadca.
[omxplayer] factor out the omxplayer busy dialog waiting
[rbp/omxplayer] When opening a stream don't try to update gui so often
[omxplayer] fixed, compiler warning
[omxplayer] Fix infinite loop if (next) bluray title can not be played
[omxplayer] Disable menu icon of the VideoOSD if a bluray is played in non nav mode
[omxplayer] use startpts as a time reference if no other is available

This avoids display of wrong time after seek, due to lack of timestamps