Switch dcae jobs to london rls branch

Replace kohn jobs to london

Change-Id: I374462005da31054ad004b213d003480351c736c
Signed-off-by: Vijay Venkatesh Kumar <vv770d@att.com>
Issue-ID: DCAEGEN2-3360
diff --git a/jjb/dcaegen2/dcaegen2-analytics-tca-gen2.yaml b/jjb/dcaegen2/dcaegen2-analytics-tca-gen2.yaml
index 1f236de..817eead 100644
--- a/jjb/dcaegen2/dcaegen2-analytics-tca-gen2.yaml
+++ b/jjb/dcaegen2/dcaegen2-analytics-tca-gen2.yaml
@@ -25,8 +25,8 @@
     stream:
       - "master":
           branch: "master"
-      - "kohn":
-          branch: "kohn"
+      - "london":
+          branch: "london"
     java-version: openjdk11
     mvn-settings: "dcaegen2-analytics-tca-gen2-settings"
     mvn-version: "mvn35"