Add databaseSecretRef for cortex-nova configuration for testing

Author: SoWieMarkus

helm/bundles/cortex-nova/values.yaml

@@ -99,6 +99,10 @@ cortex: &cortex
     keystoneSecretRef:
       name: cortex-nova-openstack-keystone
       namespace: default
+    # TODO: Remove me
+    databaseSecretRef:
+      name: cortex-nova-postgresql
+      namespace: default
 
     # ssoSecretRef:
     #   name: cortex-nova-openstack-sso