redhat: package volscan

Add volscan and the manual page to the files in the server package.

Reviewed-on: http://gerrit.openafs.org/11370
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Tested-by: Stephan Wiesand <stephan.wiesand@desy.de>
Reviewed-by: Stephan Wiesand <stephan.wiesand@desy.de>
Reviewed-by: Jeffrey Altman <jaltman@your-file-system.com>
(cherry picked from commit 80f4939a3b9e1d48c03d0797a21c9e77a844cf7f)

Change-Id: I48012e78cb0155162677a44191fbc57c64b30a3c
Reviewed-on: http://gerrit.openafs.org/11387
Reviewed-by: Andrew Deason <adeason@sinenomine.net>
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Stephan Wiesand <stephan.wiesand@desy.de>