use 172.16.0.0/12 addresses for pods and services to avoid conflicts with Packet data centre

Author: deitch

cmd/clusterctl/examples/packet/cluster.yaml.template

@@ -5,9 +5,9 @@ metadata:
 spec:
     clusterNetwork:
         services:
-            cidrBlocks: ["10.96.0.0/12"]
+            cidrBlocks: ["172.25.0.0/16"]
         pods: 
-            cidrBlocks: ["192.168.0.0/16"]
+            cidrBlocks: ["172.26.0.0/16"]
         serviceDomain: "cluster.local"
     providerSpec:
       value: