Qt should use the RWindow::FixNativeOrientation on Symbian when conditions dictate that it is possible

QML applications generally want to control how their content is rotated and can do so more efficiently than the system by rotating the painter instead of rotating the underlying graphics surface at the compositor level. In this scenario, an additional performance gain can be achieved by opting in for "FixNativeOrientation" windows at the RWindow level. In order to use this, the widget must be fullscreen.