Download Gitiles from its own stable-2.16 branch

Change-Id: I09f89948ad99f49549fe73d4bfa73ddd3cecc037
diff --git a/fpm/Makefile b/fpm/Makefile
index b64a3d0..39cfb31 100644
--- a/fpm/Makefile
+++ b/fpm/Makefile
@@ -26,7 +26,7 @@
 PLUGINS_JOBS= \
   plugin-plugin-manager-bazel-master-stable-2.16/lastSuccessfulBuild/artifact/bazel-genfiles/plugins/plugin-manager/plugin-manager.jar \
   plugin-avatars-gravatar-bazel-master-stable-2.16/lastSuccessfulBuild/artifact/bazel-genfiles/plugins/avatars-gravatar/avatars-gravatar.jar \
-  plugin-gitiles-bazel-master-stable-2.16/lastSuccessfulBuild/artifact/bazel-genfiles/plugins/gitiles/gitiles.jar \
+  plugin-gitiles-bazel-stable-2.16/lastSuccessfulBuild/artifact/bazel-genfiles/plugins/gitiles/gitiles.jar \
   plugin-delete-project-bazel-stable-2.16/lastSuccessfulBuild/artifact/bazel-genfiles/plugins/delete-project/delete-project.jar \
   plugin-uploadvalidator-bazel-stable-2.16/lastSuccessfulBuild/artifact/bazel-genfiles/plugins/uploadvalidator/uploadvalidator.jar