Add support for alarm_control_panel to MQTT Discovery. (#15689)

homeassistant/components/alarm_control_panel/mqtt.py

@@ -49,6 +49,9 @@ PLATFORM_SCHEMA = mqtt.MQTT_BASE_PLATFORM_SCHEMA.extend({
 @asyncio.coroutine
 def async_setup_platform(hass, config, async_add_devices, discovery_info=None):
     """Set up the MQTT Alarm Control Panel platform."""
+    if discovery_info is not None:
+        config = PLATFORM_SCHEMA(discovery_info)
+
     async_add_devices([MqttAlarm(
         config.get(CONF_NAME),
         config.get(CONF_STATE_TOPIC),