QmlProfiler: Don't let timer run if we cannot connect to port

Previously the timer was started as soon as we connect, but we
should actually make sure the service is there.

Change-Id: Ic59ccb4a402a54dc1fc1f0c92ca2f80dad436581
Reviewed-by: Christiaan Janssen <christiaan.janssen@nokia.com>

src/plugins/qmlprofiler/qml/MainView.qml

@@ -297,7 +297,7 @@ Rectangle {
         id: elapsedTimer
         property date startDate
         property bool reset: true
-        running: connection.recording
+        running: connection.recording && connection.enabled
         repeat: true
         onRunningChanged: {
             if (running) reset = true;