[CPS] Adding Istanbul stream to cps ci management, release process step 11

Adding istanbul branch TO CI-MANAGEMENT for DMI-Plugin.
- ncmp-dmi-plugin

Issue-ID: CPS-728
Signed-off-by: DylanB95EST <dylan.byrne@est.tech>
Change-Id: Ibf593047e88e2b2ae747603fcce02cded2265f5d
diff --git a/jjb/cps/cps-ncmp-dmi-plugin.yaml b/jjb/cps/cps-ncmp-dmi-plugin.yaml
index 780c7c1..a060364 100644
--- a/jjb/cps/cps-ncmp-dmi-plugin.yaml
+++ b/jjb/cps/cps-ncmp-dmi-plugin.yaml
@@ -41,6 +41,8 @@
     stream:
       - 'master':
           branch: master
+      - 'istanbul':
+          branch: 'istanbul'
     mvn-settings: cps-ncmp-dmi-plugin-settings
     files: '**'
     archive-artifacts: ''