message: Fix ROCM build after py_toolchains bazel support was added.
diff: load("@bazel_skylib//:bzl_library.bzl", "bzl_library")
  +load("@bazel_tools//tools/python:toolchain.bzl", "py_runtime_pair")
  licenses(["restricted"]) # MPL2, portions GPL v3, LGPL v3, BSD-like
  package(default_visibility = ["//visibility:public"])
  +# Point both runtimes to the same python binary to ensure we always
  +# use the python binary specified by ./configure.py script.
  +py_runtime(
  + name = "py2_runtime",
  + interpreter_path = "/usr/bin/python3",
  + python_version = "PY2",
  +)
  +
  +py_runtime(
  + name = "py3_runtime",
  + interpreter_path = "/usr/bin/python3",
  + python_version = "PY3",
  +)
  +
  +py_runtime_pair(
  + name = "py_runtime_pair",
  + py2_runtime = ":py2_runtime",
  + py3_runtime = ":py3_runtime",
  +)
  +
  +toolchain(
  + name = "py_toolchain",
  + toolchain = ":py_runtime_pair",
  + toolchain_type = "@bazel_tools//tools/python:toolchain_type",
  +)
  +
  config_setting(
  name = "using_hipcc",
  values = {
  