Merge "Notify dispatcher when its configuration needs to be updated" into udc-dev am: cb0109ed am: 6f8d98ce

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/22760950



Change-Id: I8291f98c0367520c4cd40e75bb4f56fd6bb14912
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>