Merge "Add comment for per-app preference priority" into main am: 1243420eb1

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/3064023

Change-Id: I6768c22db47089edb485f4f29dcbad893806eba7
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>