[automerger skipped] Only trigger a metadata sync if we don't have any cover...

[automerger skipped] Only trigger a metadata sync if we don't have any cover artwork am: d18edd5b am: 6f6584c2 am: a7e3258d -s ours

am skip reason: Change-Id I3eee51b2b5fe6d7d99cfe3e4b821327303be1e26 with SHA-1 1deb5987 is in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Bluetooth/+/11922314

Change-Id: Idf5fa2c61439ef11bf46fe3f0bcfc41bb97182c4