Add test for discovery via api gateway

Client should use discovery service to register and discovery services.
However, API gateway will route the requests to discovery service for
back-compatible with OPNE-O.

Issue-Id: MSB-61
Change-Id: I5485cc64e3648770997135ea0b50eaff81fb5036
Signed-off-by: HuabingZhao <zhao.huabing@zte.com.cn>
diff --git a/test/csit/plans/msb/rest-service/setup.sh b/test/csit/plans/msb/rest-service/setup.sh
index 4111b0d..9682cde 100644
--- a/test/csit/plans/msb/rest-service/setup.sh
+++ b/test/csit/plans/msb/rest-service/setup.sh
@@ -43,7 +43,7 @@
     sleep $i
 done
 
-#Need some time so service info can be synced from discovery to api gateway
+#Need some time for the initialization of MSB services
 sleep 60
 
 curl -X POST \