[dvdplayer] Fix streams for DVDs sync with lang settings gui
[dvdplayer] Fix DVD subtitles' visibility in various situations.
[Fix][DVDInputStreamNavigator] Disable subtitles if requested by the user via a dvd menu.
[rbp/omxplayer] Fix streams for DVDs sync with lang settings gui
[rbp/omxplayer] Fix DVD subtitles' visibility in various situations.
Merge pull request #3638 from Voyager1/fix-dvd-subs

[dvdplayer] Fix streams for DVDs sync with lang settings gui