Windows: fs checkservers should list vldb as well

Windows: fs checkservers should list vldb as well

The Windows fs checkservers has only listed offline
file servers.  Include vldb as well to match the Unix
cache manager.

Reviewed-on: http://gerrit.openafs.org/3602
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Tested-by: Jeffrey Altman <jaltman@openafs.org>
Reviewed-by: Jeffrey Altman <jaltman@openafs.org>
(cherry picked from commit e4b59c633962d7784485f8e2d4185edaf91bf23d)

Change-Id: Ic8053f7307ee937add5e0d5b9e35c03cf8ccb302
Reviewed-on: http://gerrit.openafs.org/3808
Reviewed-by: Derrick Brashear <shadow@dementia.org>
Tested-by: Derrick Brashear <shadow@dementia.org>