Enable Active-X plugin in Qt Designer.

Task-number: QTBUG-29733

Change-Id: I290c476d1ba84ca6ff519aa9d437d28e4ea066d8
Reviewed-by: Tim Jenssen <tim.jenssen@digia.com>

src/designer/src/plugins/plugins.pro

@@ -3,4 +3,4 @@ CONFIG += ordered
 
 # qtHaveModule(opengl): SUBDIRS += tools/view3d
 qtHaveModule(webkitwidgets): SUBDIRS += qwebview
-# win32: qtHaveModule(activeqt): SUBDIRS += activeqt
+win32: qtHaveModule(axcontainer): SUBDIRS += activeqt