[BROKER] Fix BT start (#2112)

Co-authored-by: Florian <1technophile@users.noreply.github.com>

main/main.ino

@@ -934,6 +934,9 @@ void setupMQTT() {
 
   mqtt.reset(new MQTTServer());
   mqtt->begin();
+#  ifdef ZgatewayBT
+  BTProcessLock = !BTConfig.enabled; // Release BLE processes at start if enabled
+#  endif
 }
 #else