QNX: Force windows resizing when the screen orientation changes

Change-Id: I82e464df86b55f04498a8f6f5c1cc5011cac0bd6
Reviewed-by: Sean Harmer <sean.harmer@kdab.com>
Reviewed-by: Nicolas Arnaud-Cormos <nicolas@kdab.com>

src/plugins/platforms/qnx/qqnxscreen.cpp

@@ -226,6 +226,7 @@ void QQnxScreen::setRotation(int rotation)
         if (m_primaryScreen) {
             QWindowSystemInterface::handleScreenOrientationChange(screen(), orientation());
             QWindowSystemInterface::handleScreenGeometryChange(screen(), m_currentGeometry);
+            resizeMaximizedWindows();
         }
     }
 }