Fix build without features.style-stylesheet

Change-Id: Ib7cf5db6c9a49e7f359410bc0ec3d1ceadcde5cf
Reviewed-by: Stephan Binner <stephan.binner@basyskom.com>
Reviewed-by: Paul Olav Tvete <paul.tvete@qt.io>

src/widgets/widgets/qmenu.cpp

@@ -130,7 +130,7 @@ public:
         setAttribute(Qt::WA_X11NetWmWindowTypeMenu, true);
         updateWindowTitle();
         setEnabled(p->isEnabled());
-#if QT_CONFIG(cssparser)
+#if QT_CONFIG(style_stylesheet)
         setStyleSheet(p->styleSheet());
 #endif
         if (style() != p->style())