[FIX] Fix openMAC documentation for Qsys component

Change-Id: I6b14ea1325219c656e71981e7be9716f77391d84
Reviewed-on: http://brateggevoat1/gerrit/2298
Tested-by: Jenkins <jenkins@brateggevoat1.br-automation.co.at>
Reviewed-by: Joerg Zelenka <joerg.zelenka@br-automation.com>