Windows: Symlink resolve failure error

Windows: Symlink resolve failure error

If a symlink cannot be resolved, return STATUS_REPARSE_POINT_NOT_RESOLVED
instead of STATUS_ACCESS_DENIED.  The symlink is after all a reparse
point.  This results in a more meaningful error being delivered to
the end user.

Change-Id: I30713dac7b916efaf3cf7a5d7717cb0bc971a31a
Reviewed-on: http://gerrit.openafs.org/6441
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Tested-by: Jeffrey Altman <jaltman@secure-endpoints.com>
Reviewed-by: Jeffrey Altman <jaltman@secure-endpoints.com>