Add include of linux.system.single.debian into int models

Change-Id: I9182c18a11f3aabdcd47ae686230655260bd79c7
Related-Bug: PROD-18591
diff --git a/classes/cluster/virtual-offline-pike-ovs-dpdk/infra/config.yml b/classes/cluster/virtual-offline-pike-ovs-dpdk/infra/config.yml
index cd33c53..43b9bb9 100644
--- a/classes/cluster/virtual-offline-pike-ovs-dpdk/infra/config.yml
+++ b/classes/cluster/virtual-offline-pike-ovs-dpdk/infra/config.yml
@@ -1,6 +1,7 @@
 classes:
 - service.git.client
 - system.linux.system.single
+- system.linux.system.single.debian
 - system.linux.system.repo_local.mcp.salt
 - system.linux.system.repo_local.mcp.apt_mirantis.openstack
 #- system.openssh.client.lab