Update GraphDef version to 477.

PiperOrigin-RevId: 323744249
Change-Id: I7e4a915f2ed632c88c476aaf243d137bd736a695

Author: tensorflower-gardener

tensorflow/core/public/version.h

@@ -108,7 +108,7 @@ limitations under the License.
 
 #define TF_GRAPH_DEF_VERSION_MIN_PRODUCER 0
 #define TF_GRAPH_DEF_VERSION_MIN_CONSUMER 0
-#define TF_GRAPH_DEF_VERSION 476  // Updated: 2020/7/28
+#define TF_GRAPH_DEF_VERSION 477  // Updated: 2020/7/29
 
 // Checkpoint compatibility versions (the versions field in SavedSliceMeta).
 //