volinfo: fix volume aux totals output

Do not print the volumes aux totals prematurely when running
volinfo with the -headers flag on an namei fileserver. Instead
print the aux totals only once after the link table size is found.

Reviewed-on: http://gerrit.openafs.org/4694
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Derrick Brashear <shadow@dementia.org>
(cherry picked from commit c833ff6c5b7f9c27cf26eae4833b033bd7382c56)

Change-Id: I6e059a070785fb44821827a75397d04c8669418d
Reviewed-on: http://gerrit.openafs.org/11247
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Chas Williams - CONTRACTOR <chas@cmf.nrl.navy.mil>
Reviewed-by: Andrew Deason <adeason@sinenomine.net>
Reviewed-by: Stephan Wiesand <stephan.wiesand@desy.de>