Fixed QGraphicsVideoItem renderiung with OpenGL viewport on Maemo5
Fixed QGraphicsVideoItem renderiung with OpenGL viewport on Maemo5

Old color key value was rendered using dithering with OpenGL.

Reviewed-by:Ling Hu

tmcguire/qt-mobility,tmcguire/qt-mobility,qtproject/qt-mobility,enthought/qt-mobility,qtproject/qt-mobility,KDE/android-qt-mobility,kaltsi/qt-mobility,enthought/qt-mobility,tmcguire/qt-mobility,enthought/qt-mobility,enthought/qt-mobility,qtproject/qt-mobility,kaltsi/qt-mobility,enthought/qt-mobility,qtproject/qt-mobility,kaltsi/qt-mobility,tmcguire/qt-mobility,tmcguire/qt-mobility,kaltsi/qt-mobility,qtproject/qt-mobility,qtproject/qt-mobility,kaltsi/qt-mobility,KDE/android-qt-mobility,kaltsi/qt-mobility,enthought/qt-mobility,KDE/android-qt-mobility,KDE/android-qt-mobility