Fixes an off-by-one bug in the static mode's MDCT twiddles
Fixes an off-by-one bug in the static mode's MDCT twiddles

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