Build events-log plugin for Gerrit v3.{1,2}

Change-Id: Iddbc86cd46327dbf44fc66f6e7e25465a8373101
diff --git a/jenkins/gerrit-bazel-plugin-events-log.yaml b/jenkins/gerrit-bazel-plugin-events-log.yaml
index 36a0296..19c5e76 100644
--- a/jenkins/gerrit-bazel-plugin-events-log.yaml
+++ b/jenkins/gerrit-bazel-plugin-events-log.yaml
@@ -1,9 +1,14 @@
 - project:
     name: events-log
     jobs:
-      - 'plugin-{name}-bazel-{branch}':
+      - 'plugin-{name}-bazel-{branch}-{gerrit-branch}':
           branch:
             - master
+          gerrit-branch:
+            - master
+            - stable-3.2
+      - 'plugin-{name}-bazel-{branch}':
+          branch:
             - stable-3.1
             - stable-3.0
             - stable-2.16