Fix unit for battery



git-svn-id: https://redmine.imt-atlantique.fr/svn/xaal/code/Python/branches/0.7@3060 b32b6428-25c9-4566-ad07-03861ab6144f

apps/homeassistant/xaal/sensor.py

@@ -65,7 +65,7 @@ class Barometer(XAALSensorEntity):
 class Battery(XAALSensorEntity):
     _attr_state_class = None
     _attr_device_class = SensorDeviceClass.BATTERY
-    _attr_unit_of_measurement = const.PERCENTAGE
+    _attr_native_unit_of_measurement = const.PERCENTAGE
     _xaal_attribute = 'level'