fixed build error
fixed build error

chrissnell/DavisSi1000,tridge/DavisSi1000,tridge/SiK,joeman155/SiK,Dronecode/SiK,chrissnell/DavisSi1000,weera00/SiK,chrissnell/DavisSi1000,mikeclement/SiK,RFDesign/SiK,tomszilagyi/SiK,geeksville/SiK,tridge/SiK,gardners/SiK,joeman155/SiK,nusepo/SiK,gardners/SiK,jschall/SiK,joeman155/SiK,gardners/SiK,davidbuzz/SiK,davidbuzz/SiK,weera00/SiK,geeksville/SiK,phelpsw/SiK,GaloisInc/smaccmpilot-SiK,phelpsw/SiK,geeksville/SiK,tridge/SiK,tridge/DavisSi1000,LorenzMeier/SiK,phelpsw/SiK,chrissnell/DavisSi1000,tomszilagyi/SiK,phelpsw/SiK,tridge/SiK,RFDesign/SiK,tomszilagyi/SiK,phelpsw/SiK,jschall/SiK,LorenzMeier/SiK,joeman155/SiK,Dronecode/SiK,tomszilagyi/SiK,tomszilagyi/SiK,tridge/DavisSi1000,jschall/SiK,geeksville/SiK,LorenzMeier/SiK,tridge/DavisSi1000,tridge/SiK,weera00/SiK,weera00/SiK,GaloisInc/smaccmpilot-SiK,Serveurperso/SiK,davidbuzz/SiK,Serveurperso/SiK,nusepo/SiK,Serveurperso/SiK,Dronecode/SiK,geeksville/SiK,mikeclement/SiK,davidbuzz/SiK,LorenzMeier/SiK,Dronecode/SiK,nusepo/SiK,mikeclement/SiK,Serveurperso/SiK,chrissnell/DavisSi1000,nusepo/SiK,mikeclement/SiK,RFDesign/SiK,mikeclement/SiK,jschall/SiK,weera00/SiK,GaloisInc/smaccmpilot-SiK,nusepo/SiK,RFDesign/SiK,joeman155/SiK,gardners/SiK,GaloisInc/smaccmpilot-SiK,RFDesign/SiK,davidbuzz/SiK