Use Qt foreach instead of C++11 specific range-base for loop

To fix build with compilers without C++11 support.

Change-Id: If5a5d5d874b196f60bcc5b7bd5a543b58f9c89a3
Reviewed-by: Andy Nichols <andy.nichols@theqtcompany.com>

src/compositor/compositor_api/qwaylandcompositor.cpp

@@ -105,7 +105,7 @@ void QWaylandCompositor::sendFrameCallbacks(QList<QWaylandSurface *> visibleSurf
 
 void QWaylandCompositor::frameStarted()
 {
-    for (QtWayland::Surface *surf: m_compositor->surfaces())
+    foreach (QtWayland::Surface *surf, m_compositor->surfaces())
         surf->frameStarted();
 }