Synchronize submodules with LLVM at llvm/llvm-project@6a7a2ee8161d

Updates LLVM dependencies to match
[6a7a2ee8161d](https://github.com/llvm/llvm-project/commit/6a7a2ee8161d).
- TensorFlow to
  [4f8db85aa9ab](https://github.com/tensorflow/tensorflow/commit/4f8db85aa9ab)
- MLIR-HLO to
  [c65dc7a455dc](https://github.com/tensorflow/mlir-hlo/commit/c65dc7a455dc)

`./scripts/git/update_to_llvm_syncpoint.py `

PiperOrigin-RevId: 387433820

SUBMODULE_VERSIONS.txt

diff --git a/SUBMODULE_VERSIONS.txt b/SUBMODULE_VERSIONS.txt
index a754b3a..f9191c2 100644
--- a/SUBMODULE_VERSIONS.txt
+++ b/SUBMODULE_VERSIONS.txt
@@ -5,12 +5,12 @@
 88b845dee001723c4a0db1fe5477de735b6d3bb0 third_party/liburing
 acd6f6f014c25e46363e718381e0b35205df2d83 third_party/libyaml
 6a7a2ee8161da84d9a58a88b497b0b47c8df99f3 third_party/llvm-project
-50d567c403292d77e1323b5b9b01b0f974867162 third_party/mlir-hlo
+c65dc7a455dcb54ea6f31fbdc3a4a83007479cd0 third_party/mlir-hlo
 4c7697dbe973ed01ae6fbec37d186ebd05982e1f third_party/pybind11
 2e1b5fb39ebc2ef4cb77005f8267e4f3a6241ba1 third_party/spirv_cross
 f5417a4b6633c3217c9a1bc2f0c70b1454975ba7 third_party/spirv_headers
 b42009b3b9d4ca35bc703f5310eedc74f584be58 third_party/stblib
-bf3a7db752fe25ae5986a8063b0dc3f55c846af1 third_party/tensorflow
+4f8db85aa9ab71a71e95d5acce7de52a0b195661 third_party/tensorflow
 50f7deb1a389bd3785c12fbe0be74128343f11f7 third_party/tracy
 9d10a96f2d57c3c37e167f2e73c9a31ac2e51fa5 third_party/vulkan_headers
 8d4a9e9174a9c6ad6a3a3ae981b915ef13fc12c4 third_party/vulkan_memory_allocator

third_party/mlir-hlo

diff --git a/third_party/mlir-hlo b/third_party/mlir-hlo
index 50d567c..c65dc7a 160000
--- a/third_party/mlir-hlo
+++ b/third_party/mlir-hlo
@@ -1 +1 @@
-Subproject commit 50d567c403292d77e1323b5b9b01b0f974867162
+Subproject commit c65dc7a455dcb54ea6f31fbdc3a4a83007479cd0

third_party/tensorflow

diff --git a/third_party/tensorflow b/third_party/tensorflow
index bf3a7db..4f8db85 160000
--- a/third_party/tensorflow
+++ b/third_party/tensorflow
@@ -1 +1 @@
-Subproject commit bf3a7db752fe25ae5986a8063b0dc3f55c846af1
+Subproject commit 4f8db85aa9ab71a71e95d5acce7de52a0b195661