Windows: AFSNameArrayClone leak in AFSCommonCreate

Do not leak the AFSNameArrayClone if AFSLocateName fails.

Reviewed-on: http://gerrit.openafs.org/9922
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Jeffrey Altman <jaltman@your-file-system.com>
(cherry picked from commit 594c97675fd961b347b451bd000804962df1b721)

Change-Id: Id6ed6eef71999540c48775bc25ed0bd290f5b574
Reviewed-on: http://gerrit.openafs.org/9924
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Jeffrey Altman <jaltman@your-file-system.com>