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: e707b19a

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



Change-Id: I39c3b1d860a22faf8aa8908c29e86455005a25ae
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>