IDevice: Add a qmlProfilerHost function

This seems to be a better abstraction than the "pseudo dynamic cast"
in the QmlProfilerTool and the DebuggerPlugin itself.

Change-Id: If7dea70e1353852ebb6d3ce43220c0b03ccb4b00
Reviewed-by: Christian Kandeler <christian.kandeler@digia.com>

src/plugins/android/androiddevice.cpp

@@ -99,5 +99,10 @@ IDevice::Ptr AndroidDevice::clone() const
     return IDevice::Ptr(new AndroidDevice(*this));
 }
 
+QString AndroidDevice::qmlProfilerHost() const
+{
+    return QLatin1String("localhost");
+}
+
 } // namespace Internal
 } // namespace Android