[automerger skipped] Add flag for widgets in Launcher preview am: d1d6713700 -s ours am: 2a616a9bbd -s ours am: 082a3dccc4 -s ours

am skip reason: Merged-In I74063d0ef29f828f740633ce0dab860672f69d3d with SHA-1 2b81fec450 is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/15828620

Change-Id: Ia7f9c6e01eb556c9122064a2276f494b318db637