message: Add TFT_BFLOAT16 definition.
diff: @@ -153,6 +153,7 @@ enum FullTypeId {
  TFT_HALF = 209;
  TFT_FLOAT = 210;
  TFT_DOUBLE = 211;
  + TFT_BFLOAT16 = 215;
  // Complex element types.
  // TODO(mdan): Represent as TFT_COMPLEX[TFT_DOUBLE] instead?
  TFT_COMPLEX64 = 212;
  