Windows: Test NameArrayReferenceCount before deletion

In commit c753d398f2005c886932f20b49af15efc489a829 the
AFSDirectoryCB.DirOpenReferenceCount was split and the
NameArrayReferenceCount field was added.  However, it failed to modify all
of the DirOpenReferenceCount checks prior to calling AFSDeleteDirEntry()
to include a check on the NameArrayReferenceCount.  This patchset corrects
that oversight.

Reviewed-on: http://gerrit.openafs.org/9254
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Jeffrey Altman <jaltman@your-file-system.com>
Tested-by: Jeffrey Altman <jaltman@your-file-system.com>
(cherry picked from commit a10e96b3aa631a0488532f88d3959fdf22265d35)

Change-Id: I4717af0d9a73581f5bc19eaee0fa8d7e349b4da9
Reviewed-on: http://gerrit.openafs.org/9261
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Jeffrey Altman <jaltman@your-file-system.com>