Diag: set timeout for diagRequest from config ...

Option: "ATBDeviceControllerPlugin/diagTimeout"
 Description: Timeout for diagRequest in seconds.
 Default value: 45s

src/ATBAPP/ATBDeviceControllerPlugin.cpp

@@ -82,6 +82,8 @@ PLUGIN_STATE ATBDeviceControllerPlugin::initDCPlugin(QObject *eventReceiver, con
     this->diag = new DeviceControllerDiag(this->persistentData, this);
     connect(this->diag, &DeviceControllerDiag::newVoltage, this, &ATBDeviceControllerPlugin::onNewVoltage);
 
+    int diagTimeout = settings.value("ATBDeviceControllerPlugin/diagTimeout", "45").toInt();
+    this->diag->setTimeout(diagTimeout);
 
     // currentSelectedTicketType - number of used "Kombiticket" (deprecated) use TICKET_VARIANT in future
     this->currentSelectedTicketType = 0;