Integrate TF at tensorflow/tensorflow@2e56481abcef

Updates TF to
[2e56481abcef](https://github.com/tensorflow/tensorflow/commit/2e56481abcef)
matching
[93377888ae89](https://github.com/llvm/llvm-project/commit/93377888ae89)
and copies over the LLVM BUILD files.

`./scripts/git/update_to_llvm_syncpoint.py --tensorflow_commit=LATEST_MATCH`

COPYBARA_INTEGRATE_REVIEW=https://github.com/google/iree/pull/3432 from ScottTodd:tf-submodule-update a29df219b5711d66bd0484a85f2cd7941f0e6a60
PiperOrigin-RevId: 336684138

SUBMODULE_VERSIONS

diff --git a/SUBMODULE_VERSIONS b/SUBMODULE_VERSIONS
index 63d437a..b61cdfe 100644
--- a/SUBMODULE_VERSIONS
+++ b/SUBMODULE_VERSIONS
@@ -14,7 +14,7 @@
 685f86471e9d26b3eb7676695a2e2cefb4551ae9 third_party/spirv_cross
 f8bf11a0253a32375c32cad92c841237b96696c0 third_party/spirv_headers
 57eb48aed36160c4876bc8310d9ca84d42ee9e2a third_party/swiftshader
-9dfedbd7f0fc7f37dd8fac30bcc76c290ba4ebc7 third_party/tensorflow
+2e56481abcef1dd1625fba465a5d02ee6b347842 third_party/tensorflow
 a9a09ab0940408898fccfdcfe2bb8dc19b50f13c third_party/tracy
 9bd3f561bcee3f01d22912de10bb07ce4e23d378 third_party/vulkan_headers
 909f36b714c9239ee0b112a321220213a474ba53 third_party/vulkan_memory_allocator

build_tools/bazel/third_party_import/llvm-project/overlay/llvm/BUILD.bazel

diff --git a/build_tools/bazel/third_party_import/llvm-project/overlay/llvm/BUILD.bazel b/build_tools/bazel/third_party_import/llvm-project/overlay/llvm/BUILD.bazel
index e0d64fe..5790059 100644
--- a/build_tools/bazel/third_party_import/llvm-project/overlay/llvm/BUILD.bazel
+++ b/build_tools/bazel/third_party_import/llvm-project/overlay/llvm/BUILD.bazel
@@ -1773,6 +1773,50 @@
 )
 
 cc_library(
+    name = "CSKYCodeGen",
+    srcs = glob([
+        "lib/Target/CSKY/*.c",
+        "lib/Target/CSKY/*.cpp",
+        "lib/Target/CSKY/*.inc",
+    ]),
+    hdrs = glob([
+        "include/llvm/Target/CSKY/*.h",
+        "include/llvm/Target/CSKY/*.def",
+        "include/llvm/Target/CSKY/*.inc",
+        "lib/Target/CSKY/*.h",
+    ]),
+    copts = llvm_copts + ["-Iexternal/llvm-project/llvm/lib/Target/CSKY"],
+    deps = [
+        ":CSKYInfo",
+        ":CodeGen",
+        ":Core",
+        ":Support",
+        ":Target",
+        ":config",
+    ],
+)
+
+cc_library(
+    name = "CSKYInfo",
+    srcs = glob([
+        "lib/Target/CSKY/TargetInfo/*.c",
+        "lib/Target/CSKY/TargetInfo/*.cpp",
+        "lib/Target/CSKY/TargetInfo/*.inc",
+    ]),
+    hdrs = glob([
+        "include/llvm/Target/CSKY/TargetInfo/*.h",
+        "include/llvm/Target/CSKY/TargetInfo/*.def",
+        "include/llvm/Target/CSKY/TargetInfo/*.inc",
+        "lib/Target/CSKY/TargetInfo/*.h",
+    ]),
+    copts = llvm_copts + ["-Iexternal/llvm-project/llvm/lib/Target/CSKY"],
+    deps = [
+        ":Support",
+        ":config",
+    ],
+)
+
+cc_library(
     name = "CodeGen",
     srcs = glob([
         "lib/CodeGen/*.c",

build_tools/bazel/third_party_import/llvm-project/overlay/mlir/BUILD.bazel

diff --git a/build_tools/bazel/third_party_import/llvm-project/overlay/mlir/BUILD.bazel b/build_tools/bazel/third_party_import/llvm-project/overlay/mlir/BUILD.bazel
index f925d03..31a839d 100644
--- a/build_tools/bazel/third_party_import/llvm-project/overlay/mlir/BUILD.bazel
+++ b/build_tools/bazel/third_party_import/llvm-project/overlay/mlir/BUILD.bazel
@@ -1272,6 +1272,30 @@
 )
 
 gentbl(
+    name = "GPUBaseIncGen",
+    strip_include_prefix = "include",
+    tbl_outs = [
+        (
+            "-gen-dialect-decls -dialect=gpu",
+            "include/mlir/Dialect/GPU/GPUOpsDialect.h.inc",
+        ),
+        (
+            "-gen-op-interface-decls",
+            "include/mlir/Dialect/GPU/GPUOpInterfaces.h.inc",
+        ),
+        (
+            "-gen-op-interface-defs",
+            "include/mlir/Dialect/GPU/GPUOpInterfaces.cpp.inc",
+        ),
+    ],
+    tblgen = ":mlir-tblgen",
+    td_file = "include/mlir/Dialect/GPU/GPUBase.td",
+    td_srcs = [
+        ":GPUOpsTdFiles",
+    ],
+)
+
+gentbl(
     name = "GPUOpsIncGen",
     strip_include_prefix = "include",
     tbl_outs = [
@@ -1283,10 +1307,6 @@
             "-gen-op-defs",
             "include/mlir/Dialect/GPU/GPUOps.cpp.inc",
         ),
-        (
-            "-gen-dialect-decls -dialect=gpu",
-            "include/mlir/Dialect/GPU/GPUOpsDialect.h.inc",
-        ),
     ],
     tblgen = ":mlir-tblgen",
     td_file = "include/mlir/Dialect/GPU/GPUOps.td",
@@ -1308,12 +1328,14 @@
     ]),
     includes = ["include"],
     deps = [
+        ":GPUBaseIncGen",
         ":GPUOpsIncGen",
         ":IR",
         ":LLVMDialect",
         ":SideEffectInterfaces",
         ":StandardOps",
         ":Support",
+        "@llvm-project//llvm:Support",
     ],
 )
 
@@ -3799,6 +3821,7 @@
         ":ConversionPassIncGen",
         ":IR",
         ":LinalgOps",
+        ":LinalgTransforms",
         ":Pass",
         ":SCFDialect",
         ":StandardOps",