message: Integrate LLVM at llvm/llvm-project@aafb3662103f
  Updates LLVM usage to match
  [aafb3662103f](https://github.com/llvm/llvm-project/commit/aafb3662103f)
diff: @@ -686,8 +686,8 @@ def tf_repositories(path_prefix = "", tf_repo_name = ""):
  )
  # Check out LLVM and MLIR from llvm-project.
  - LLVM_COMMIT = "bb993b1d9de34b8e47511a746bf4422ba206123b"
  - LLVM_SHA256 = "ab4cd0ce81fac6769130eaf00826eb9ee0502048dfb93da37e0e72b590e3671b"
  + LLVM_COMMIT = "aafb3662103f4b3df315967c0cf4f6eec6bff0c4"
  + LLVM_SHA256 = "6f3a0b9e7aae732fa25754f993057fe8833caf14da556071af320ad3e7785f4c"
  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),
  