FreetzMount:
 * add support for the mount points naming scheme {{{${vendor}-${product}-${device_number}${partition_number}}}} used by AVM as the default naming scheme since some time
 * refs #2499


git-svn-id: file:///var/svn/freetz/trunk@12507 149334a1-2f27-0410-a3b9-fc62619ac1e6