Windows: AFSSetRenameInfo Notify correct object of change

When AFSSetRenameInfo makes a change, it is the parent object
that must be notified not the parent of the parent.

Change-Id: I56b3f1c076cb4abb4b5e41aed261e867a2d2ebb7
Reviewed-on: http://gerrit.openafs.org/8958
Reviewed-by: Rod Widdowson <rdw@steadingsoftware.com>
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Jeffrey Altman <jaltman@your-file-system.com>
Tested-by: Jeffrey Altman <jaltman@your-file-system.com>