Deconz use entity registry (#12067)

* Support for entity registry

* Not everything is a sensor...

homeassistant/components/binary_sensor/deconz.py

@@ -65,6 +65,11 @@ class DeconzBinarySensor(BinarySensorDevice):
         """Return the name of the sensor."""
         return self._sensor.name
 
+    @property
+    def unique_id(self):
+        """Return a unique identifier for this sensor."""
+        return self._sensor.uniqueid
+
     @property
     def device_class(self):
         """Return the class of the sensor."""