Move to apt_mirantis repo

   * repo.ubuntu => repo.mcp.apt_mirantis.ubuntu

Change-Id: If279fdb5d387af1d9521377fce126bcb56ba55ef
diff --git a/classes/cluster/k8s-ha-contrail/infra/config.yml b/classes/cluster/k8s-ha-contrail/infra/config.yml
index d439773..eb6fbe0 100644
--- a/classes/cluster/k8s-ha-contrail/infra/config.yml
+++ b/classes/cluster/k8s-ha-contrail/infra/config.yml
@@ -1,6 +1,6 @@
 classes:
 - system.linux.system.single
-- system.linux.system.repo.ubuntu
+- system.linux.system.repo.mcp.apt_mirantis.ubuntu
 - system.linux.system.repo.mcp.salt
 - system.openssh.client.lab
 - system.salt.master.pkg