Merge "Satellite demo mode : Simulated sending and receiving" into udc-dev am: c858b2c6 am: f6c80579 am: e8059bba am: 04f154c7

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/22845479



Change-Id: Ifc9b8eb7cdd2b759f82497ff4da48857bb119a36
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>