Merge "Handle configuration changes in floating rotation button" into sc-v2-dev am: ed05712f04 am: 6b45ff77e8

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/16343605

Change-Id: I412679a314a4eab71a035c62884df44ca55e62f9