We just gave VLC Streamer on Android the ability to pick between audio and video tracks.
This option is available when you add a movie directly from your Android. If VLC Streamer spots multiple tracks then it will show a red count in the subtitle or audio track tab-bar at the top of the quality screen.
just pick the track you want and click ‘Watch!’
There are other ways to pick the tracks you want, including specifying your preferred language and letting VLC deal with things. You can read all about it on our wiki.