Automated sync from github.com/tensorflow/tensorflow (#2502)

BUG=automated sync from upstream
NO_CHECK_TFLITE_FILES=automated sync from upstream

tensorflow/lite/core/macros.h

diff --git a/tensorflow/lite/core/macros.h b/tensorflow/lite/core/macros.h
index d329ded..1bab15b 100644
--- a/tensorflow/lite/core/macros.h
+++ b/tensorflow/lite/core/macros.h
@@ -73,6 +73,8 @@
 // field for minimum runtime version, string
 inline constexpr char tflite_metadata_min_runtime_version[] =
     "min_runtime_version";
+// the stablehlo op version is supported by the tflite runtime
+inline constexpr char tflite_supported_stablehlo_version[] = "0.14.0";
 #endif
 
 #endif  // TENSORFLOW_LITE_CORE_MACROS_H_