Merge "Add divider between QS and media" into rvc-dev am: bd0b819c am: fbc1b63f am: 84ce5ed7 am: 67c61b18

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/11953553

Change-Id: Ic3659ccb595795be26802e659da2b495eee5254f