Merge "Updated the document regarding T data stack" into tm-dev am: 5a1a044e...

Merge "Updated the document regarding T data stack" into tm-dev am: 5a1a044e am: 349e3ba5 am: 759f83e2

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/opt/telephony/+/18436120



Change-Id: I66ab4c65b6e786a8b6c324c16da60b9b784498e1
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>