Integrate TF at tensorflow/tensorflow@48e66b2056d0

Updates TF to
[48e66b2056d0](https://github.com/tensorflow/tensorflow/commit/48e66b2056d0)
matching
[eb9f7c28e5fe](https://github.com/llvm/llvm-project/commit/eb9f7c28e5fe)
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/3290 from google:auto_submodule_update e5491d7d5697d581ceaa2a0a8e71e893d123f953
PiperOrigin-RevId: 334606387
diff --git a/SUBMODULE_VERSIONS b/SUBMODULE_VERSIONS
index 89a0909..054dbc8 100644
--- a/SUBMODULE_VERSIONS
+++ b/SUBMODULE_VERSIONS
@@ -13,7 +13,7 @@
 685f86471e9d26b3eb7676695a2e2cefb4551ae9 third_party/spirv_cross
 f8bf11a0253a32375c32cad92c841237b96696c0 third_party/spirv_headers
 57eb48aed36160c4876bc8310d9ca84d42ee9e2a third_party/swiftshader
-9427f6f2cfc21aac7fcd25710cc354bcd8c195ad third_party/tensorflow
+48e66b2056d0f9bfabc0e499f39826c94980634f third_party/tensorflow
 864d86e8b6d21449474db5e9313dbff90aa9c24f third_party/tracy
 9bd3f561bcee3f01d22912de10bb07ce4e23d378 third_party/vulkan_headers
 909f36b714c9239ee0b112a321220213a474ba53 third_party/vulkan_memory_allocator