Update kaldi-native-fbank. (#2259)

Now it supports FFT of an even number, not necessarily a power of 2.

sherpa-onnx/csrc/offline-recognizer-transducer-nemo-impl.h

@@ -156,6 +156,12 @@ class OfflineRecognizerTransducerNeMoImpl : public OfflineRecognizerImpl {
       config_.feat_config.preemph_coeff = 0;
       config_.feat_config.window_type = "hann";
       config_.feat_config.feature_dim = 64;
+
+      // see
+      // https://github.com/salute-developers/GigaAM/blob/main/gigaam/preprocess.py#L68
+      //
+      // GigaAM uses n_fft 400
+      config_.feat_config.round_to_power_of_two = false;
     } else {
       config_.feat_config.low_freq = 0;
       // config_.feat_config.high_freq = 8000;