Add debian.single in root init

To have it an all the node add it in root init file

Change-Id: I842e87c263729218754ac79febf043b9b91a36d1
diff --git a/classes/cluster/virtual-offline-pike-ovs-dpdk/init.yml b/classes/cluster/virtual-offline-pike-ovs-dpdk/init.yml
index 0dade38..c943066 100644
--- a/classes/cluster/virtual-offline-pike-ovs-dpdk/init.yml
+++ b/classes/cluster/virtual-offline-pike-ovs-dpdk/init.yml
@@ -7,6 +7,7 @@
 - system.linux.system.repo_local.mcp.apt_mirantis.saltstack_2016_3
 - system.linux.system.repo_local.mcp.apt_mirantis.ubuntu
 - system.linux.system.single
+- system.linux.system.single.debian
 - system.rsyslog.client.single
 - system.prometheus.collector
 - system.telegraf.agent