Update SDC streams for Istanbul

Signed-off-by: MichaelMorris <michael.morris@est.tech>
Issue-ID: SDC-3739
Change-Id: Ic672eb1bb17fe56904848e10b0f913c41a0b122f
diff --git a/jjb/sdc/sdc-csit.yaml b/jjb/sdc/sdc-csit.yaml
index c053518..3064f2c 100644
--- a/jjb/sdc/sdc-csit.yaml
+++ b/jjb/sdc/sdc-csit.yaml
@@ -21,8 +21,8 @@
       stream:
           - 'master':
                 branch: 'master'
-          - 'honolulu':
-                branch: 'honolulu'
+          - 'istanbul':
+                branch: 'istanbul'
       java-version: openjdk11
       maven-version: 'mvn36'
       mvn-settings: 'sdc-settings'