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

Reviewed-on: http://gerrit.openafs.org/11327
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Jeffrey Altman <jaltman@your-file-system.com>
(cherry picked from commit 6667399aa426009a841cdd6459dbfa498e562646)

Change-Id: I5eaa9316806da60699cdb194058613ff7671cb8a
Reviewed-on: http://gerrit.openafs.org/11368
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Chas Williams - CONTRACTOR <chas@cmf.nrl.navy.mil>
Reviewed-by: Garrett Wollman <wollman@csail.mit.edu>
Tested-by: Garrett Wollman <wollman@csail.mit.edu>
Reviewed-by: Benjamin Kaduk <kaduk@mit.edu>
Reviewed-by: Stephan Wiesand <stephan.wiesand@desy.de>