[Android] Code cleanup and consolidation of constants

[Robert Stone]

vlc-android | branch: master | Robert Stone <rhstone at gmail.com> | Tue Jul  6 22:15:09 2021 -0700| [2f91c89c00af531f1a5c61aa5707a1696575626c] | committer: Nicolas Pomepuy

Code cleanup and consolidation of constants

> https://code.videolan.org/videolan/vlc-android/commit/2f91c89c00af531f1a5c61aa5707a1696575626c
---

 .../src/org/videolan/vlc/ArtworkProvider.kt        |  2 +-
 .../src/org/videolan/vlc/PlaybackService.kt        |  4 ++--
 .../org/videolan/vlc/media/MediaSessionBrowser.kt  | 22 +++++++++++++---------
 .../src/org/videolan/vlc/media/MediaUtils.kt       |  2 +-
 4 files changed, 17 insertions(+), 13 deletions(-)

Diff:   https://code.videolan.org/videolan/vlc-android/commit/2f91c89c00af531f1a5c61aa5707a1696575626c