add l2advertisement to metallb address pool k0s config

active/software_k0s/metallb-address-pool.yaml

@@ -6,3 +6,11 @@ metadata:
 spec:
   addresses:
     - 192.168.123.100-192.168.123.254
+
+---
+
+apiVersion: metallb.io/v1beta1
+kind: L2Advertisement
+metadata:
+  name: default
+  namespace: metallb-system