3.x: fix multi DC tests in `ZeroTokenNodesIT`

[dkropachev]

Some tests using the following code to provision two dc cluster:

      ccmBridge =
          CCMBridge.builder().withNodes(2).withIpPrefix("127.0.1.").withBinaryPort(9042).build();
      ccmBridge.start();
      ccmBridge.add(2, 3);
      ccmBridge.updateNodeConfig(3, "join_ring", false);
      ccmBridge.start(3);
      ccmBridge.add(2, 4);
      ccmBridge.updateNodeConfig(4, "join_ring", false);

Due to the bug in CCM you can't provision second DC if cluster was provision with only one.
Because of this error you endup with cluster of one DC.

Fix, is to provision cluster with two DCs, second DC with 0 nodes:

      ccmBridge =
          CCMBridge.builder().withNodes(2,0).withIpPrefix("127.0.1.").withBinaryPort(9042).build();

[Bouncheck]

Fix will be bigger because changing this surfaces other roadblocks, like being unable to create table without enough token owning nodes in zero token DCs.
edit: There were less downstream problems than expected in the end.