Use bluetooth.core.gap.le.privacy.enabled sysprop to init BLE Privacy am: 06f7bd00 am: 72c84fe3

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/modules/Bluetooth/+/17622230



Change-Id: I59311baf17df6ea836f17f13e581940b0762c909
Ignore-AOSP-First: this is an automerge
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>