Merge "Disallow long press below taskbar icons" into tm-dev am: 8e0177813a am: b2ac0758a4

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/17872520

Change-Id: I293cc8908f34ec5d8ed6bc77a315b220ff597812
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>