Update network names

Change-Id: I5dd9d3235b4f438bf518c02c6768bbefccc035d8
diff --git a/nodepool/nodepool.yaml b/nodepool/nodepool.yaml
index 01bea13..0d8d24e 100644
--- a/nodepool/nodepool.yaml
+++ b/nodepool/nodepool.yaml
@@ -73,8 +73,7 @@
         max-servers: 4
         auto-floating-ip: False
         networks:
-          - lab-vlan400
-          - lab-charmed-testing-iscsi
+          - lab-untrusted-access
         security-groups:
           - default
           - "Remote Access"