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: 3e6c7a26 am: 1288e744

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



Change-Id: Ic24eea15918a0d9502b1265a5e3486211f051776
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>