CBQE-0: missed FROM_2_0 group in config for rebalance_out_with_ddoc_compaction

Change-Id: Ie311e2b73044e60a05e3f75e009e95498f804b30
Reviewed-on: http://review.couchbase.org/26405
Reviewed-by: Andrei Baranouski <andrei.baranouski@gmail.com>
Tested-by: Andrei Baranouski <andrei.baranouski@gmail.com>