message: Integrate LLVM at llvm/llvm-project@6f04addc8b2e
  Updates LLVM usage to match
  [6f04addc8b2e](https://github.com/llvm/llvm-project/commit/6f04addc8b2e)
diff: @@ -684,8 +684,8 @@ def tf_repositories(path_prefix = "", tf_repo_name = ""):
  )
  # Check out LLVM and MLIR from llvm-project.
  - LLVM_COMMIT = "0c118831a37a058f5ff196a4be3c4d5b1cf25e63"
  - LLVM_SHA256 = "025bebeebf746ae907c71921c465a69bae9dd1d9417ce6d8242c6fdf26c789ea"
  + LLVM_COMMIT = "6f04addc8b2eee0d88b97facfa4fb7424b4b74bd"
  + LLVM_SHA256 = "76c531cd1e701ddf2765a95afb3cd3bdb9f7151f86536632c3072c25d9862e8e"
  LLVM_URLS = [
  "https://storage.googleapis.com/mirror.tensorflow.org/github.com/llvm/llvm-project/archive/{commit}.tar.gz".format(commit = LLVM_COMMIT),
  "https://github.com/llvm/llvm-project/archive/{commit}.tar.gz".format(commit = LLVM_COMMIT),
  