Build oauth plugin for Gerrit v3.2

Change-Id: Ide3f3a3dbb27034f86ffbe7efa71daf78fe7aae3
diff --git a/jenkins/gerrit-bazel-plugin-oauth.yaml b/jenkins/gerrit-bazel-plugin-oauth.yaml
index 073e113..7913661 100644
--- a/jenkins/gerrit-bazel-plugin-oauth.yaml
+++ b/jenkins/gerrit-bazel-plugin-oauth.yaml
@@ -10,4 +10,5 @@
             - master
           gerrit-branch:
             - master
+            - stable-3.2
             - stable-3.1