Merge "[DOC UPDATE] Refine extension strength default" into udc-dev am: 79e749d4 am: 112a8a34

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/24344720



Change-Id: I78906b40828fef893e41181ddeb6cfca93c13e46
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>