update proc for oov in hotword onnx inference

shixian.shi

2023-09-12 9c622feb645ee8ab166cd6d5fc9d0b2130a0f5fd

 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