Merge "Improve javadoc for Wi-Fi related policies" into tm-dev am: e51b62b2 am: 46c44784

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/18374443



Change-Id: I1116841f8b67c8fc0859e02af4c21dae18c922bf
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>