fix bug for h5 hotwords (#1067)

zhaomingwork

2023-11-08 2e36e738ca39afc8d02f3d11013bd12f937cc874

 funasr/layers/inversible_interface.py

@@ -11,4 +11,4 @@
        self, input: torch.Tensor, input_lengths: torch.Tensor = None
    ) -> Tuple[torch.Tensor, torch.Tensor]:
        # return output, output_lengths
        raise NotImplementedError
        raise NotImplementedError