Add Jenkins jobs for ccsdk/sdnc istanbul branches

Add Jenkins jobs for CCSDK and SDNC istanbul branches and
remove jobs for dormant ccsdk/utils repo

Issue-ID: CCSDK-3470
Issue-ID: SDNC-1611
Signed-off-by: Dan Timoney <dtimoney@att.com>
Change-Id: Iac565ca573353c89ebd4727c206acb6742ca98fb
diff --git a/jjb/sdnc/sdnc-apps.yaml b/jjb/sdnc/sdnc-apps.yaml
index fedeb7c..6c843ce 100644
--- a/jjb/sdnc/sdnc-apps.yaml
+++ b/jjb/sdnc/sdnc-apps.yaml
@@ -38,6 +38,8 @@
           branch: 'master'
       - 'honolulu':
           branch: 'honolulu'
+      - 'istanbul':
+          branch: 'istanbul'
     java-version: openjdk11
     mvn-version : "mvn36"
     mvn-settings: 'sdnc-apps-settings'