fix compile warning in cc1201.cpp
fix compile warning in cc1201.cpp

JNeiger/robocup-software,JNeiger/robocup-software,RoboJackets/robocup-software,RoboJackets/robocup-software,JNeiger/robocup-software,JNeiger/robocup-software,RoboJackets/robocup-software,JNeiger/robocup-software,RoboJackets/robocup-software