feat: speed up fbank's lfr (#2246)

Tang Linjie

2024-11-30 8b1be8c3cba8987e9993619b46e59039ef3d6560

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ID0012W0013 https://isv-data.oss-cn-hangzhou.aliyuncs.com/ics/MaaS/ASR/test_audio/asr_example_zh.wav
ID0012W0014 https://isv-data.oss-cn-hangzhou.aliyuncs.com/ics/MaaS/ASR/test_audio/asr_example_en.wav