Merge "Using DiffUtil for calculating widget diff instead of a custom...

Merge "Using DiffUtil for calculating widget diff instead of a custom implementation" into tm-qpr-dev am: cc10ed55

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/21381953



Change-Id: I42080a592bef63d0cb7e55189a1a6249f331220a
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>