MTP: media info can not be retrieved via MTP#2

Under the new MtpStorageManager design,
media info like MP3 Track title, album and artist, Genre, etc
can not be retrieved via MTP
by Windows Media Player, Linux Rhythmbox and Some Car Kits

Bug: 112635346
Test: atest MtpTests
Test: atest MediaProviderTests
Test: Manual test: Windows Media Player
Change-Id: I57a947fe6d3a583a0990be5bd2b0678f39d948f2