Windows: Freelance whole volume rdr invalidate

When updating the Freelance directory do not notify the redirector
of individual objects to invalidate since that can leaad to race
conditions.  Send whole volume invalidations since that is what is
required in any case.

Reviewed-on: http://gerrit.openafs.org/11400
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Jeffrey Altman <jaltman@your-file-system.com>
(cherry picked from commit 8e23809542556937a0845246960a0f5484b6cf1e)

Change-Id: I7803c44740b5f2283d4bd872f81ac164b03559fc
Reviewed-on: http://gerrit.openafs.org/11412
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Jeffrey Altman <jaltman@your-file-system.com>