[GEANT] Adaptation to BgpSpeakerVlan feature.

Change-Id: I997bf31778ff41037eab457b338760dc6fdd1582
diff --git a/sdx-l3/src/main/resources/config-examples/network-cfg.json b/sdx-l3/src/main/resources/config-examples/network-cfg.json
index 7100e7a..31fde3f 100644
--- a/sdx-l3/src/main/resources/config-examples/network-cfg.json
+++ b/sdx-l3/src/main/resources/config-examples/network-cfg.json
@@ -50,7 +50,7 @@
   },
   "apps" : {
     "org.onosproject.sdxl3": {
-      "providers": {
+      "participants": {
         "bgpPeers": [
           {
             "name": "AS1-Router1",