[DCAE] Add Kohn branch and cleanup older branches

Remove jakarta branch with exception of dcaegen2 (doc) repo.

Change-Id: I219f232188f0cfcb9203f27ab236cd14d4ac6cc6
Signed-off-by: Vijay Venkatesh Kumar <vv770d@att.com>
Issue-ID: DCAEGEN2-3236
Signed-off-by: Vijay Venkatesh Kumar <vv770d@att.com>
diff --git a/jjb/dcaegen2/dcaegen2.yaml b/jjb/dcaegen2/dcaegen2.yaml
index e47a145..e2d70f2 100644
--- a/jjb/dcaegen2/dcaegen2.yaml
+++ b/jjb/dcaegen2/dcaegen2.yaml
@@ -17,6 +17,8 @@
     stream:
       - 'master':
           branch: 'master'
+      - 'kohn':
+          branch: 'kohn'
       - 'jakarta':
           branch: 'jakarta'
     mvn-settings: 'dcaegen2-settings'