settings: Add a RemotePreference for device-specific doze settings

 * If a device has it's own panel, we should replace the item under
   display settings instead of having to clutter up the dashboard.
 * This uses the new RemotePreference API to allow the external
   app to update the view
 * The action for this is org.cyanogenmod.settings.device.DOZE_SETTINGS

Change-Id: I7d054a2dcc5ce9b9e49defe43470a3a83852f4a5