message: Add qint8 to list of types supported by the GPU ConstOp.
diff: @@ -102,6 +102,7 @@ REGISTER_KERNEL(GPU, float);
  REGISTER_KERNEL(GPU, double);
  REGISTER_KERNEL(GPU, uint8);
  REGISTER_KERNEL(GPU, int8);
  +REGISTER_KERNEL(GPU, qint8);
  REGISTER_KERNEL(GPU, uint16);
  REGISTER_KERNEL(GPU, int16);
  REGISTER_KERNEL(GPU, int64);
  