Fix VideoOutput autoOrientation when switching cameras.

The VideoOutput's camera info was not updated when switching cameras.

Change-Id: I23537ce98b08009898eaa26ef14d5b9a746ab5f7
Reviewed-by: Andrew Knight <andrew.knight@theqtcompany.com>

src/multimedia/qtmultimediaquicktools_headers/qdeclarativevideooutput_p.h

@@ -119,6 +119,7 @@ protected:
 
 private Q_SLOTS:
     void _q_updateMediaObject();
+    void _q_updateCameraInfo();
     void _q_updateNativeSize();
     void _q_updateGeometry();
     void _q_screenOrientationChanged(int);