Add back appc master csit

Should not have removed this before, adding it back.

Change-Id: I431b6717aade5984a49ee1fb9d3c8a1982b9a15b
Signed-off-by: Patrick Brady <pb071s@att.com>
Issue-ID: APPC-916
diff --git a/jjb/appc/appc-csit.yaml b/jjb/appc/appc-csit.yaml
index cc551f8..e0dfbfe 100644
--- a/jjb/appc/appc-csit.yaml
+++ b/jjb/appc/appc-csit.yaml
@@ -6,6 +6,8 @@
       - '{project-name}-{stream}-csit-{functionality}'
     project-name: 'appc'
     stream:
+      - 'master':
+          branch: master
       - 'beijing':
           branch: 'beijing'
     functionality: