Synchronize submodules with LLVM at llvm/llvm-project@7aeb3804c46c
Synchronize submodules with LLVM at llvm/llvm-project@7aeb3804c46c

Updates LLVM dependencies to match
[7aeb3804c46c](https://github.com/llvm/llvm-project/commit/7aeb3804c46c).
- llvm-bazel to
  [50ffa8a910f9](https://github.com/google/llvm-bazel/commit/50ffa8a910f9)
- TensorFlow to
  [152cd6c3b7c3](https://github.com/tensorflow/tensorflow/commit/152cd6c3b7c3)

`./scripts/git/update_to_llvm_syncpoint.py `

COPYBARA_INTEGRATE_REVIEW=https://github.com/google/iree/pull/4231 from NatashaKnk:llvm-dependent-submodule-update 0a7530435cabd5b0126f19168bd86524079287d3
PiperOrigin-RevId: 347742362

iree-org/iree,iree-org/iree,google/iree,google/iree,iree-org/iree,iree-org/iree,google/iree,google/iree,google/iree,iree-org/iree,iree-org/iree,google/iree,iree-org/iree,google/iree