Add missing accessible child id.

In the deprecated function the child parameter got lost.

Change-Id: Ieeef19100bffaaa6079185dae6ae5bf82dcd7a60
Reviewed-by: Jan-Arve Sæther <jan-arve.saether@nokia.com>

src/gui/accessible/qaccessible.cpp

@@ -650,6 +650,7 @@ void QAccessible::updateAccessibility(QObject *object, int child, Event reason)
     Q_ASSERT(object);
 
     QAccessibleEvent ev(object, reason);
+    ev.setChild(child);
     updateAccessibility(&ev);
 }