Merge "launcher: use correct preference key on SettingsChangeLogger" into sc-v2-dev am: c7c1ea8ac8 am: 2221a326f0

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/15267298

Change-Id: I4c8f15d641f5ec6d884273edccf4b2988f9e8485