increase range of allowable values for RxGain to support Ettus hardware
increase range of allowable values for RxGain to support Ettus hardware

Djimmer/obts,xyzr0482/openbts,xyzr0482/openbts,Djimmer/obts,hongyunnchen/openbts,Djimmer/obts,Djimmer/obts,RangeNetworks/openbts,xyzr0482/openbts,xyzr0482/openbts,dhenyjarasandy/openbts,RangeNetworks/openbts,maxifree/openbts,Djimmer/obts,WindyCitySDR/openbts,RangeNetworks/openbts,hongyunnchen/openbts,WindyCitySDR/openbts,maxifree/openbts,endaga/openbts,endaga/openbts,dhenyjarasandy/openbts,maxifree/openbts,hongyunnchen/openbts,hongyunnchen/openbts,brunoflce/pessoalopenBTS,WindyCitySDR/openbts,WindyCitySDR/openbts,endaga/openbts,RangeNetworks/openbts,RangeNetworks/openbts,brunoflce/pessoalopenBTS,brunoflce/pessoalopenBTS,Djimmer/obts,brunoflce/pessoalopenBTS,endaga/openbts,dhenyjarasandy/openbts,WindyCitySDR/openbts,RangeNetworks/openbts,dhenyjarasandy/openbts,maxifree/openbts,endaga/openbts,hongyunnchen/openbts,brunoflce/pessoalopenBTS,xyzr0482/openbts,maxifree/openbts,dhenyjarasandy/openbts