MB-8864 change register ID for
windows automation install from build 2.2.0-781

Change-Id: I6f470ee5e2a24c5978399a7e36514908487c8bca
Reviewed-on: http://review.couchbase.org/28317
Tested-by: Thuan Nguyen <soccon@gmail.com>
Tested-by: buildbot <build@couchbase.com>
Reviewed-by: Ketaki Gangal <ketakigangal@gmail.com>