FBSD: 9.3 has been released, so add config bits and sysname

Change-Id: I453a457d5311dfea04fd7e8173f1296a0db74902
Reviewed-on: http://gerrit.openafs.org/11327
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Jeffrey Altman <jaltman@your-file-system.com>