Updated hosts after starting demo rack at ONF

Change-Id: Ic3e8c2d1d0b815602d0b7d01e41ef7b83c0d02a7
diff --git a/p4-pod-configs/mwc-pod/hosts.json b/p4-pod-configs/mwc-pod/hosts.json
index ef9dc64..db72039 100644
--- a/p4-pod-configs/mwc-pod/hosts.json
+++ b/p4-pod-configs/mwc-pod/hosts.json
@@ -23,7 +23,7 @@
         ]
       }
     },
-    "00:1E:67:D2:C9:8B/None": {
+    "00:1E:67:D2:C9:8A/None": {
       "basic": {
         "name": "Compute Node 2",
         "ips": [