Temporary workaround for video filter wrapper in qt4 (wall).

modules/gui/qt4/components/extended_panels.cpp

@@ -260,6 +260,7 @@ void ExtVideo::ChangeVFiltersString( const char *psz_name, bool b_add )
     if( !strcmp( psz_name, "magnify" ) ||
         !strcmp( psz_name, "puzzle" ) ||
         !strcmp( psz_name, "logo" ) ||
+        !strcmp( psz_name, "wall" ) ||
         !strcmp( psz_name, "clone" ) )
         psz_module_name = "video_filter_wrapper";