fix hotword tokenize

haoneng.lhn

2023-07-17 52b36291e1a6bdac7f7f067b9e28e79b24de4c62

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beam_size: 5
penalty: 0.0
maxlenratio: 0.0
minlenratio: 0.0
ctc_weight: 0.5
lm_weight: 0.7