Change freeradius image

Change-Id: Ie13ae4d52aade422d631107bad4e46e9cabdecd8
diff --git a/voltha/templates/freeradius-config.yaml b/voltha/templates/freeradius-config.yaml
index a8aa079..63963d1 100644
--- a/voltha/templates/freeradius-config.yaml
+++ b/voltha/templates/freeradius-config.yaml
@@ -15,7 +15,7 @@
 apiVersion: v1
 data:
   clients.conf: |
-    client 192.168.64.0/18 {
+    client 10.233.0.0/16 {
       secret = SECRET
     }
   users: |