Build the LFS plugin on stable-2.16

Change-Id: I3af18962c1e9212da93935aff919da4fb9ca77fa
diff --git a/jenkins/gerrit-buck-bazel-plugin-lfs.yaml b/jenkins/gerrit-buck-bazel-plugin-lfs.yaml
index 27de9f2..d56f259 100644
--- a/jenkins/gerrit-buck-bazel-plugin-lfs.yaml
+++ b/jenkins/gerrit-buck-bazel-plugin-lfs.yaml
@@ -7,5 +7,6 @@
       - 'plugin-{name}-bazel-{branch}':
           branch:
             - master
+            - stable-2.16
             - stable-2.15
             - stable-2.14