am b3c5fac5: Merge "Revert "Disable setWallpaper button until the wallpaper is loaded" Will submit again after the drop" into ub-launcher3-burnaby

* commit 'b3c5fac5dc16189f1d9ebe7ff8504612d4869e6f':
  Revert "Disable setWallpaper button until the wallpaper is loaded" Will submit again after the drop