Return missed salt master class in drivetrain_ha

Change-Id: Iecdd0766e432ad57d8acbc5607fb03e344a6b5ed
diff --git a/classes/cluster/drivetrain-ha-clusters/infra/config.yml b/classes/cluster/drivetrain-ha-clusters/infra/config.yml
index 5658e18..73af8b7 100644
--- a/classes/cluster/drivetrain-ha-clusters/infra/config.yml
+++ b/classes/cluster/drivetrain-ha-clusters/infra/config.yml
@@ -65,6 +65,7 @@
           name: ${_param:cicd_control_node01_hostname}
           domain: ${_param:cluster_domain}
           classes:
+          - cluster.${_param:cluster_name}.infra.config
           - cluster.${_param:cluster_name}.cicd.control.master
           params:
             salt_master_host: ${_param:reclass_config_master}