Create new view for audio_artists_albums

The view audio_albums is only group by album_id. If there are
some audio files with different artists in the same album, it may
return no result when we query the different artists. Add the new
view with group by album_id and artist_id.

Test: manual. DocumentsUI -> Audio root
Test: atest MediaStore_Audio_Artists_AlbumsTest
Bug: 184919380
Change-Id: Id96e2a473ceb1fcc200cac952774a5408cc9db8f
2 files changed