Set Tune watchdog to 120 seconds

widgets/mainwindow.cpp

@@ -7049,7 +7049,7 @@ void MainWindow::on_rptSpinBox_valueChanged(int n)
 
 void MainWindow::on_tuneButton_clicked (bool checked)
 {
-  tuneATU_Timer.start (60000); // tune watchdog (60s)
+  tuneATU_Timer.start (120000); // tune watchdog (120s)
   static bool lastChecked = false;
   if (lastChecked == checked) return;
   lastChecked = checked;