volinfo: fix volume aux totals output

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.

Change-Id: I4538e2fc8978530fd2e8593e0b343a2497c7a764
Reviewed-on: http://gerrit.openafs.org/4694
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Derrick Brashear <shadow@dementia.org>