mosquitto: Updated config

- use include conf.d for listener conf

net/mosquitto/files/etc/mosquitto/mosquitto.conf

@@ -8,11 +8,4 @@ per_listener_settings true
 persistence false
 persistence_location /mosquitto/data/
 
-listener 1883 127.0.0.1
-allow_anonymous true
-
-listener 9001
-protocol websockets
-password_file /etc/mosquitto/mosquitto.password
-require_certificate false
-allow_anonymous false
+include_dir /etc/mosquitto/conf.d