Update limeRFE_cmd.cpp
Update limeRFE_cmd.cpp

Corrected the return value from Cmd_Fan.

myriadrf/LimeSuite,limemicro/lms7suite,myriadrf/LimeSuite,myriadrf/LimeSuite,limemicro/lms7suite,limemicro/lms7suite,myriadrf/LimeSuite,limemicro/lms7suite,myriadrf/LimeSuite,limemicro/lms7suite