NotificationHelper: Create broadcast receiver for Peek app

Store showing state.

Signed-off-by: Carlo Savignano <stevewatersy@gmail.com>

BluetoothManagerService: Fix build

Change-Id: If432c9229841dfacf1ce8992a2c8dcbc8285dc32
Signed-off-by: Carlos Jesús <xxx.reptar.rawrr.xxx@gmail.com>