Add C++ runtime for silero_vad with RKNN (#2078)

scripts/silero_vad/v4/test-onnx.py

@@ -97,10 +97,13 @@ def main():
     h, c = model.get_init_states()
     window_size = 512
     num_windows = samples.shape[0] // window_size
+
     for i in range(num_windows):
         start = i * window_size
         end = start + window_size
+
         p, h, c = model(samples[start:end], h, c)
+
         probs.append(p[0].item())
 
     threshold = 0.5