Merge "Update device-entry docs + add glossary" into tm-dev am: 35772beb am:...

Merge "Update device-entry docs + add glossary" into tm-dev am: 35772beb am: e238695b am: 28991222

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/17567678



Change-Id: I9d6a281a45a9f25c80fcd74ea6bc0ab804875c98
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>