Integrate TF at tensorflow/tensorflow@e79810668690
Integrate TF at tensorflow/tensorflow@e79810668690

Updates TF to
[e79810668690](https://github.com/tensorflow/tensorflow/commit/e79810668690)
matching
[a90d72127a81](https://github.com/llvm/llvm-project/commit/a90d72127a81)
and copies over the LLVM BUILD files.

`./scripts/git/update_to_llvm_syncpoint.py`

Automated submodule bump from .github/workflows/update_tf.yml

COPYBARA_INTEGRATE_REVIEW=https://github.com/google/iree/pull/3240 from google:auto_submodule_update 8ab97780b5fcbd55d20b92852a793af5be54f2a3
PiperOrigin-RevId: 333558918

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