Windows: pSrcObject instead of pSrcFcb->ObjectInformation

In AFSSetFileLinkInfo and AFSSetRenameInfo consistently use the
variable pSrcObject instead of pSrcFcb->ObjectInformation.  pSrcObject
is a local alias.  Mixing both forms in the same function is confusing.

Reviewed-on: http://gerrit.openafs.org/9810
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Rod Widdowson <rdw@steadingsoftware.com>
Reviewed-by: Jeffrey Altman <jaltman@your-file-system.com>
(cherry picked from commit a7165067d79814bacabd55e9bab66c6a3ae45b76)

Change-Id: I0c52a00a0e5015f152db0e3e6e85f7c613908ca4
Reviewed-on: http://gerrit.openafs.org/9826
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Jeffrey Altman <jaltman@your-file-system.com>