Start Wifi after initializing VS1053 - faster bootup when multiple tries setting up VS1053 are needed.

include/controller.h

@@ -30,7 +30,8 @@ private:
 	unsigned long _last_mqtt_report_at = 0;
 	void _send_mqtt_report();
 public:
-	Controller(Player* p, MCP* m, MQTTClient* mqtt);
+	Controller(Player* p, MCP* m);
+	void set_mqtt_client(MQTTClient* m);
 	String get_status_json();
 	void loop();
 };