use dhp banner images

Change-Id: I558801024153daaf15d8cfba4bbaa685862a32a2
Reviewed-on: http://gerrit.esdi-community.eu/3158
Tested-by: Jenkins <sitemple@igd.fraunhofer.de>
Reviewed-by: Simon Templer <simon.templer@igd.fraunhofer.de>