Merge "[Status Bar Refactor] 2.2/N: Migrate StatusBar's panelExpansionChanged callback to the correct listener interface." into sc-v2-dev am: 56b6645afb am: 4817ba36f8

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/16092653

Change-Id: Iad2f1ab8fc867e35d8fe19e52a7740fc38e44440