Add bazel watcher in downstream config (not yet enabled in downstream pipeline)
Add bazel watcher in downstream config (not yet enabled in downstream pipeline)

Change-Id: I54c21f159052a5f3fd1a92838e0325084a6658f1

bazelbuild/continuous-integration,bazelbuild/continuous-integration,bazelbuild/continuous-integration,bazelbuild/continuous-integration,bazelbuild/continuous-integration,bazelbuild/continuous-integration,bazelbuild/continuous-integration,bazelbuild/continuous-integration