Merge "Adjust rubberband factor for notification stack overscroll" into tm-qpr-dev am: fcdc3d4355

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/20875464

Change-Id: I09e84f7482d43c1f1b0bf9ab6fc3660f1dbab25a
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>