Merge "add capability to send and receive events" into udc-dev am: c3399a34

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/21482412



Change-Id: Iecebfd7f7f24ce1e5d43768d31bf1b5f65b55978
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>