Change moxi branch in toy-sriram.xml

Change-Id: Iea5b3303e8eb4ddc00eca359da9c518f24cbed90
Reviewed-on: http://review.couchbase.org/40557
Reviewed-by: Sriram Ganesan <sriram@couchbase.com>
Tested-by: Sriram Ganesan <sriram@couchbase.com>