message: Add DT_UINT16 to the list of types for int_val field in Tensor proto
  No function change. Adding the type just for completeness.
diff: @@ -52,7 +52,7 @@ message TensorProto {
  // DT_DOUBLE.
  repeated double double_val = 6 [packed = true];
  - // DT_INT32, DT_INT16, DT_INT8, DT_UINT8.
  + // DT_INT32, DT_INT16, DT_UINT16, DT_INT8, DT_UINT8.
  repeated int32 int_val = 7 [packed = true];
  // DT_STRING
  