[Android] Use databinding for audio player

[Geoffrey Métais]

vlc-android | branch: master | Geoffrey Métais <geoffrey.metais at gmail.com> | Tue Jan  3 10:57:07 2017 +0100| [ce1aeb7ab33d5b30843ef5eb40d523e34499a066] | committer: Geoffrey Métais

Use databinding for audio player

> https://code.videolan.org/videolan/vlc-android/commit/ce1aeb7ab33d5b30843ef5eb40d523e34499a066
---

 vlc-android/res/layout/audio_player.xml            | 524 +++++++++++----------
 .../org/videolan/vlc/gui/audio/AudioPlayer.java    | 329 +++++--------
 2 files changed, 379 insertions(+), 474 deletions(-)

Diff:   https://code.videolan.org/videolan/vlc-android/commit/ce1aeb7ab33d5b30843ef5eb40d523e34499a066