Merge "Add icons for staged split" into sc-v2-dev am: 7f54d5cde4 am: 0dc5a85eb5

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/16374164

Change-Id: I3103d1d423910686d049d72f399bfdf1eb0539ee