[Android] Fix desc toggle in sort

[Geoffrey Métais]

vlc-android | branch: master | Geoffrey Métais <geoffrey.metais at gmail.com> | Mon Jul  8 17:38:56 2019 +0200| [b0a665df6e48257b8b8682af5f6f18c3a2a52862] | committer: Geoffrey Métais

Fix desc toggle in sort

Fix #910

> https://code.videolan.org/videolan/vlc-android/commit/b0a665df6e48257b8b8682af5f6f18c3a2a52862
---

 .../vlc/providers/medialibrary/AlbumsProvider.kt   | 18 +++++++++---------
 .../vlc/providers/medialibrary/ArtistsProvider.kt  |  6 +++---
 .../vlc/providers/medialibrary/FoldersProvider.kt  |  4 ++--
 .../vlc/providers/medialibrary/GenresProvider.kt   |  6 +++---
 .../providers/medialibrary/PlaylistsProvider.kt    |  6 +++---
 .../vlc/providers/medialibrary/TracksProvider.kt   | 22 +++++++++++-----------
 .../vlc/providers/medialibrary/VideosProvider.kt   | 10 +++++-----
 7 files changed, 36 insertions(+), 36 deletions(-)

Diff:   https://code.videolan.org/videolan/vlc-android/commit/b0a665df6e48257b8b8682af5f6f18c3a2a52862