Making the fine energy allocation code less ugly.
Making the fine energy allocation code less ugly.

No change to behaviour except that for stereo we now only force a minimum
of one energy bit per channel (previously two because of an error).

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