message: add a manual tag to //cc:tpu_test
diff: @@ -470,7 +470,7 @@ minigo_cc_binary(
  minigo_cc_binary(
  name = "tpu_test",
  srcs = ["tpu_test.cc"],
  - visibility = ["//visibility:public"],
  + tags = ["manual"],
  deps = [
  ":tensorflow",
  "@com_github_gflags_gflags//:gflags",
  