[Android] Tag 3.1.7 : 3.1.7

[git at videolan.org]

[vlc-android] [branch: refs/tags/3.1.7]
Tag:    7cb687ecc8cdb120abd211ae81cad2c6db4ec122
> https://code.videolan.org/videolan/vlc-android/commits/7cb687ecc8cdb120abd211ae81cad2c6db4ec122

Tagger: Geoffrey Métais <geoffrey.metais at gmail.com>
Date:   Wed Jun 26 14:20:37 2019 +0200

3.1.7
Maintenance release