ansible-scylla-node: Pass broadcast_address to the tokens API instead…

… of dns name

Currently we're using the dns name and this makes the API return error, since
it expects the broadcast address.

ansible-scylla-node/tasks/generate_tokens.yml

@@ -33,7 +33,7 @@
   block:
     - name: Get tokens
       uri:
-        url: "http://{{ scylla_api_address }}:{{ scylla_api_port }}/storage_service/tokens/{{ item }}"
+        url: "http://{{ scylla_api_address }}:{{ scylla_api_port }}/storage_service/tokens/{{ hostvars[item]['broadcast_address'] }}"
         method: GET
       register: _existing_tokens
       until: _existing_tokens.status == 200