fix suggested parentheses warning (#697)

although C++ operator precedence would be correct in this case

Author: kleini

src/Homie/Boot/BootNormal.cpp

@@ -123,7 +123,7 @@ void BootNormal::loop() {
   }
 
   for (HomieNode* iNode : HomieNode::nodes) {
-    if (iNode->runLoopDisconnected || (Interface::get().getMqttClient().connected()) && _mqttConnectNotified ) iNode->loop();
+    if (iNode->runLoopDisconnected || (Interface::get().getMqttClient().connected() && _mqttConnectNotified)) iNode->loop();
   }
   if (_mqttReconnectTimer.check()) {
     _mqttConnect();