Port BATCH_MATMUL (#2147)

@tensorflow/micro

Port BATCH_MATMUL kernel from TfLite along with unit tests.

[b/291110349
](https://issuetracker.google.com/issues/291110349)

bug=fixes #2146

tensorflow/lite/micro/kernels/BUILD

@@ -185,6 +185,7 @@ tflm_kernel_cc_library(
         "add_n.cc",
         "arg_min_max.cc",
         "assign_variable.cc",
+        "batch_matmul.cc",
         "batch_to_space_nd.cc",
         "broadcast_args.cc",
         "broadcast_to.cc",
@@ -425,6 +426,20 @@ cc_test(
     ],
 )
 
+cc_test(
+    name = "batch_matmul_test",
+    srcs = [
+        "batch_matmul_test.cc",
+    ],
+    deps = [
+        ":kernel_runner",
+        "//tensorflow/lite/c:common",
+        "//tensorflow/lite/micro:op_resolvers",
+        "//tensorflow/lite/micro:test_helpers",
+        "//tensorflow/lite/micro/testing:micro_test",
+    ],
+)
+
 cc_test(
     name = "batch_to_space_nd_test",
     srcs = [

tensorflow/lite/micro/kernels/Makefile.inc

@@ -1,4 +1,4 @@
-# Copyright 2021 The TensorFlow Authors. All Rights Reserved.
+# Copyright 2023 The TensorFlow Authors. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -114,6 +114,7 @@ $(TENSORFLOW_ROOT)tensorflow/lite/micro/kernels/activations_test.cc \
 $(TENSORFLOW_ROOT)tensorflow/lite/micro/kernels/add_test.cc \
 $(TENSORFLOW_ROOT)tensorflow/lite/micro/kernels/add_n_test.cc \
 $(TENSORFLOW_ROOT)tensorflow/lite/micro/kernels/arg_min_max_test.cc \
+$(TENSORFLOW_ROOT)tensorflow/lite/micro/kernels/batch_matmul_test.cc \
 $(TENSORFLOW_ROOT)tensorflow/lite/micro/kernels/batch_to_space_nd_test.cc \
 $(TENSORFLOW_ROOT)tensorflow/lite/micro/kernels/broadcast_args_test.cc \
 $(TENSORFLOW_ROOT)tensorflow/lite/micro/kernels/broadcast_to_test.cc \