Merge "Update datagram transfer state." into udc-dev am: 154856f6 am: a8718b32

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/opt/telephony/+/21892185



Change-Id: I77c755f0cb9b7fdc8c2b9de32132e4af2eb87c57
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>