Merge "Update datagram transfer states internally first and then send updates...

Merge "Update datagram transfer states internally first and then send updates to clients." into udc-dev am: 5b524109

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/opt/telephony/+/22612801



Change-Id: Ibb3ad02f87e92901df6d7f157007125b04496037
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>