Update cookied generator models to new CC structure

Currently in CC proposed new structure were introduced:

cluster_name:
-- infra/
------config/
-------init.yaml

So updated tests that edit thos file to use new path

Change-Id: Ia7d198c6f2c8cf96370e23ffdf2935f6735d64f1
diff --git a/tcp_tests/templates/cookied-bm-mcp-pike-k8s-contrail/salt.yaml b/tcp_tests/templates/cookied-bm-mcp-pike-k8s-contrail/salt.yaml
index 7ebda02..0e60fd0 100644
--- a/tcp_tests/templates/cookied-bm-mcp-pike-k8s-contrail/salt.yaml
+++ b/tcp_tests/templates/cookied-bm-mcp-pike-k8s-contrail/salt.yaml
@@ -35,7 +35,7 @@
     set -e;
     # Remove rack01 key
     . /root/venv-reclass-tools/bin/activate;
-    reclass-tools del-key parameters.reclass.storage.node.kubernetes_compute_rack01 /srv/salt/reclass/classes/cluster/{{ LAB_CONFIG_NAME }}/infra/config.yml;
+    reclass-tools del-key parameters.reclass.storage.node.kubernetes_compute_rack01 /srv/salt/reclass/classes/cluster/{{ LAB_CONFIG_NAME }}/infra/config/init.yml;
   node_name: {{ HOSTNAME_CFG01 }}
   retry: {count: 1, delay: 10}
   skip_fail: false