Merge "Halve listview update delay" into tm-dev am: 1ffed5d9 am: 1a84e5a7 am: 986ccf61

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/18144265



Change-Id: I7199c7dfb1e173ebb3899a241018046ffe2d73c1
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>