Merge "Notify SysUi on device rotation for back gesture" into ub-launcher3-rvc-dev am: ca5e9cb7ef

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/11396771

Change-Id: Iededa386593fc6ea6875e3fc61c3c6abe67a9e22