Settings: Add a RemotePreference for device-specific doze settings

 * If a device has its own panel, we should replace the item under
   display settings instead of having to clutter up the dashboard.
 * Devices that provide Doze settings typically implement own AOD pref,
   so hide AOSP one.
 * This uses the new RemotePreference API to allow the external
   app to update the view.
 * The action for this is "org.lineageos.settings.device.DOZE_SETTINGS".

Co-authored-by: Bruno Martins <bgcngm@gmail.com>
Change-Id: I22fd7e6307b370807415ce2132bed4808b2befe1