power/supply: surface_battery: Use client device wrappers for notifie…

…r registration

Use newly introduced client device wrapper functions for notifier
registration and unregistration.

Signed-off-by: Maximilian Luz <luzmaximilian@gmail.com>

drivers/power/supply/surface_battery.c

@@ -802,7 +802,7 @@ static int spwr_battery_register(struct spwr_battery_device *bat)
 	if (IS_ERR(bat->psy))
 		return PTR_ERR(bat->psy);
 
-	return ssam_notifier_register(bat->sdev->ctrl, &bat->notif);
+	return ssam_device_notifier_register(bat->sdev, &bat->notif);
 }
 
 
@@ -837,7 +837,7 @@ static void surface_battery_remove(struct ssam_device *sdev)
 {
 	struct spwr_battery_device *bat = ssam_device_get_drvdata(sdev);
 
-	ssam_notifier_unregister(sdev->ctrl, &bat->notif);
+	ssam_device_notifier_unregister(sdev, &bat->notif);
 	cancel_delayed_work_sync(&bat->update_work);
 }