experimental|gmskframegen: fixing bug in frame generation
experimental|gmskframegen: fixing bug in frame generation

  * counted wrong number of symbols for ramp\dn sequence
  * used ramp/up length incorrectly

jgaeddert/liquid-dsp,cjcliffe/liquid-dsp,jgaeddert/liquid-dsp,andrepuschmann/liquid-dsp,wangning223/liquid-dsp,cjcliffe/liquid-dsp,biotrump/liquid-dsp,manuts/liquid-dsp,andrepuschmann/liquid-dsp,wangning223/liquid-dsp,cjcliffe/liquid-dsp,JayKickliter/liquid-dsp,biotrump/liquid-dsp,JayKickliter/liquid-dsp,manuts/liquid-dsp,manuts/liquid-dsp,JayKickliter/liquid-dsp,JayKickliter/liquid-dsp,manuts/liquid-dsp,cjcliffe/liquid-dsp,andrepuschmann/liquid-dsp,biotrump/liquid-dsp,andrepuschmann/liquid-dsp,andrepuschmann/liquid-dsp,wangning223/liquid-dsp,jgaeddert/liquid-dsp,cjcliffe/liquid-dsp,jgaeddert/liquid-dsp,wangning223/liquid-dsp,biotrump/liquid-dsp,biotrump/liquid-dsp,wangning223/liquid-dsp,manuts/liquid-dsp,jgaeddert/liquid-dsp,JayKickliter/liquid-dsp