Synchronize submodules with LLVM at llvm/llvm-project@de7a4e53a22b Updates LLVM dependencies to match [de7a4e53a22b](https://github.com/llvm/llvm-project/commit/de7a4e53a22b). - TensorFlow to [c9d6f6f031f5](https://github.com/tensorflow/tensorflow/commit/c9d6f6f031f5) - MLIR-HLO to [2e03bc727af8](https://github.com/tensorflow/mlir-hlo/commit/2e03bc727af8) `./scripts/git/update_to_llvm_syncpoint.py ` PiperOrigin-RevId: 387004099