Add note about device selection in Cilium Helm Release (#1297)

See onedr0p/cluster-template#1295

bootstrap/templates/partials/cilium-values-init.partial.yaml.j2

@@ -17,6 +17,9 @@ containerRuntime:
   {% if distribution.type in ["k3s"] %}
   socketPath: /var/run/k3s/containerd/containerd.sock
   {% endif %}
+# NOTE: This might need to be set if you have more than one active NIC on your hosts
+# devices:
+#   - eno0
 endpointRoutes:
   enabled: true
 hubble: