Fix quant_bands() for start != 0
Fix quant_bands() for start != 0

oneman/opus-oneman,Distrotech/celt,oneman/opus-oneman,mumble-voip/celt-0.11.0,dezelin/celt,dezelin/celt,Distrotech/celt,oneman/opus-oneman,mumble-voip/celt-0.11.0,mumble-voip/celt-0.11.0,dezelin/celt,Distrotech/celt