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

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



Change-Id: I6e2792f9e6ac2783d0b0687377e2be5253f3b4cd
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>