Use encrypted link for avdtp and avctp channels am: 5f93c29e am: 2ae60805 am: 6562f7f2

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/modules/Bluetooth/+/29552597



Change-Id: Idc860f9d85875a6e3249402c3441a813cf535d7b
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>