Merge "Add optional debug logging to on flag changes" into tm-qpr-dev am: 8daf6d80 am: ea674e20

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/21868395



Change-Id: I3e7c7a84bcaaf37bb55225ea714c46fea999a067
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>