ivi-shell: Fixed broken link to wiki page in ivi-layout header file

Signed-off-by: Michael Teyfel <mteyfel@de.adit-jv.com>
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>

ivi-shell/ivi-layout-export.h

@@ -45,7 +45,7 @@
  * application surfaces grouped to the layer all together.
  *
  * This API and ABI follow following specifications.
- * http://projects.genivi.org/wayland-ivi-extension/layer-manager-apis
+ * https://at.projects.genivi.org/wiki/display/PROJ/Wayland+IVI+Extension+Design
  */
 
 #ifndef _IVI_LAYOUT_EXPORT_H_