Windows: cm_LookupInternal obtain type of target

Windows: cm_LookupInternal obtain type of target

cm_LookupInternal needs to return the target of a mount point
if the matching directory entry is a mount point.  Therefore, if
the target type is unknown the status information must be queried.

Reviewed-on: http://gerrit.openafs.org/8528
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 9ed02a628afd700a0e3c47ac92fa9c89d0827301)

Change-Id: I02d09772df1ef32800736fd798f2f5f4b2997a86
Reviewed-on: http://gerrit.openafs.org/8532
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Jeffrey Altman <jaltman@your-file-system.com>