Fix repo trigger to build docker image

Change-Id: Icebb6131bb3baf4dcac6715a9e435264241a39d2
diff --git a/jenkins/client/job/docker/build-images.yml b/jenkins/client/job/docker/build-images.yml
index 0f2cdc9..61f1e6d 100644
--- a/jenkins/client/job/docker/build-images.yml
+++ b/jenkins/client/job/docker/build-images.yml
@@ -26,7 +26,7 @@
             trigger:
               gerrit:
                 project:
-                  "mk/docker-{{name}}":
+                  "{{repo}}/docker-{{name}}":
                     branches:
                       - master
                 event: