Update Flex OLT IP for 6.0

Change-Id: I86ed0d7a959b373bdef0a806c75c0fccaa8c0eea
diff --git a/src/test/cord-api/Tests/data/RealOLTDevice.json b/src/test/cord-api/Tests/data/RealOLTDevice.json
index 0ac640d..c45d564 100644
--- a/src/test/cord-api/Tests/data/RealOLTDevice.json
+++ b/src/test/cord-api/Tests/data/RealOLTDevice.json
@@ -2,7 +2,7 @@
     "VOLTDeviceInfo" : [
     {
             "device_type": "openolt",
-            "host": "10.192.4.218",
+            "host": "10.192.4.206",
             "port": 9191,
             "switch_datapath_id": "of:0000cc37ab5b6da8",
             "switch_port": "7",