[ONOS-6615] Configuration service doesn't add rest and netconf devices together

Change-Id: I40daa2800109e2ed7e42b4cc6507a200b4d440a8
diff --git a/tools/test/configs/restSB-cfg-old.json b/tools/test/configs/restSB-cfg-old.json
index f7aa152..9d1181e 100644
--- a/tools/test/configs/restSB-cfg-old.json
+++ b/tools/test/configs/restSB-cfg-old.json
@@ -8,7 +8,7 @@
   },
   "apps": {
     "org.onosproject.restsb": {
-      "devices": [{
+      "rest_devices": [{
         "username": "dev",
         "password": "",
         "ip": "127.0.0.1",