uhd: remove extra type conversion
uhd: remove extra type conversion

Type conversion, if necessary, should happen inside the device.

Signed-off-by: Thomas Tsou <ttsou@vt.edu>

git-svn-id: 504cad4147f1e500be0a169b9f46375eaf875953@2633 19bc5d8c-e614-43d4-8b26-e1612bc8e597

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