Acceleration is AVX specific, rewrite in VOLK

https://github.com/sandialabs/gr-fhss_utils/blob/maint-3.10/lib/fft_burst_tagger_impl.cc#L790-L817

Is AVX specific. VOLK provides a nice interface to have AVX and other SIMD acceleration. It would be nice to have this rewritten in volk to take advantage of the best SIMD instructions available.