[Quantization] import torch.fx only if torch.__version__ >= 1.8

wanchen.swc

2023-03-30 0438b966d6d9ef89fdd7a8d112d6e03b34122b1e

 funasr/models/encoder/opennmt_encoders/self_attention_encoder.py

@@ -272,7 +272,7 @@
            position embedded tensor and mask
        """
        masks = (~make_pad_mask(ilens)[:, None, :]).to(xs_pad.device)
        xs_pad *= self.output_size()**0.5
        xs_pad = xs_pad * self.output_size()**0.5
        if self.embed is None:
            xs_pad = xs_pad
        elif (