Use prometheus_global for the SL2 deployments

We should use global mode for Prometheus running in
docker swarm as a default one, as its benefical.

Change-Id: I976a0ab22fa6af321fc0eba8b6083ff5a24167bb
diff --git a/classes/cluster/virtual-mcp11-k8s-calico/stacklight/server.yml b/classes/cluster/virtual-mcp11-k8s-calico/stacklight/server.yml
index 2ec9276..e8895b3 100644
--- a/classes/cluster/virtual-mcp11-k8s-calico/stacklight/server.yml
+++ b/classes/cluster/virtual-mcp11-k8s-calico/stacklight/server.yml
@@ -24,7 +24,7 @@
 - system.prometheus.server.remote_write.docker
 - system.prometheus.server.alertmanager.dns
 - system.prometheus.server.target.dns
-- system.docker.swarm.stack.monitoring
+- system.docker.swarm.stack.monitoring.prometheus_global
 - system.docker.swarm.stack.dashboard
 - cluster.virtual-mcp11-k8s-calico
 parameters: