Fix compiler warning
Fix compiler warning

TheIronBorn/qgroundcontrol,mihadyuk/qgroundcontrol,caoxiongkun/qgroundcontrol,ethz-asl/qgc_asl,caoxiongkun/qgroundcontrol,TheIronBorn/qgroundcontrol,BMP-TECH/qgroundcontrol,devbharat/qgroundcontrol,catch-twenty-two/qgroundcontrol,Hunter522/qgroundcontrol,scott-eddy/qgroundcontrol,TheIronBorn/qgroundcontrol,cfelipesouza/qgroundcontrol,catch-twenty-two/qgroundcontrol,UAVenture/qgroundcontrol,fizzaly/qgroundcontrol,UAVenture/qgroundcontrol,kd0aij/qgroundcontrol,remspoor/qgroundcontrol,RedoXyde/PX4_qGCS,kd0aij/qgroundcontrol,kd0aij/qgroundcontrol,ethz-asl/qgc_asl,kd0aij/qgroundcontrol,hejunbok/qgroundcontrol,iidioter/qgroundcontrol,cfelipesouza/qgroundcontrol,UAVenture/qgroundcontrol,LIKAIMO/qgroundcontrol,dagoodma/qgroundcontrol,greenoaktree/qgroundcontrol,remspoor/qgroundcontrol,iidioter/qgroundcontrol,RedoXyde/PX4_qGCS,UAVenture/qgroundcontrol,hejunbok/qgroundcontrol,BMP-TECH/qgroundcontrol,CornerOfSkyline/qgroundcontrol,nado1688/qgroundcontrol,ethz-asl/qgc_asl,catch-twenty-two/qgroundcontrol,CornerOfSkyline/qgroundcontrol,caoxiongkun/qgroundcontrol,CornerOfSkyline/qgroundcontrol,devbharat/qgroundcontrol,LIKAIMO/qgroundcontrol,nado1688/qgroundcontrol,mihadyuk/qgroundcontrol,RedoXyde/PX4_qGCS,caoxiongkun/qgroundcontrol,jy723/qgroundcontrol,devbharat/qgroundcontrol,nado1688/qgroundcontrol,iidioter/qgroundcontrol,dagoodma/qgroundcontrol,LIKAIMO/qgroundcontrol,UAVenture/qgroundcontrol,dagoodma/qgroundcontrol,scott-eddy/qgroundcontrol,catch-twenty-two/qgroundcontrol,TheIronBorn/qgroundcontrol,greenoaktree/qgroundcontrol,caoxiongkun/qgroundcontrol,fizzaly/qgroundcontrol,Hunter522/qgroundcontrol,ethz-asl/qgc_asl,scott-eddy/qgroundcontrol,Hunter522/qgroundcontrol,fizzaly/qgroundcontrol,jy723/qgroundcontrol,fizzaly/qgroundcontrol,devbharat/qgroundcontrol,kd0aij/qgroundcontrol,jy723/qgroundcontrol,scott-eddy/qgroundcontrol,devbharat/qgroundcontrol,mihadyuk/qgroundcontrol,nado1688/qgroundcontrol,greenoaktree/qgroundcontrol,remspoor/qgroundcontrol,dagoodma/qgroundcontrol,hejunbok/qgroundcontrol,nado1688/qgroundcontrol,ethz-asl/qgc_asl,TheIronBorn/qgroundcontrol,iidioter/qgroundcontrol,BMP-TECH/qgroundcontrol,remspoor/qgroundcontrol,greenoaktree/qgroundcontrol,cfelipesouza/qgroundcontrol,LIKAIMO/qgroundcontrol,greenoaktree/qgroundcontrol,scott-eddy/qgroundcontrol,UAVenture/qgroundcontrol,jy723/qgroundcontrol,LIKAIMO/qgroundcontrol,iidioter/qgroundcontrol,RedoXyde/PX4_qGCS,catch-twenty-two/qgroundcontrol,TheIronBorn/qgroundcontrol,catch-twenty-two/qgroundcontrol,jy723/qgroundcontrol,cfelipesouza/qgroundcontrol,hejunbok/qgroundcontrol,cfelipesouza/qgroundcontrol,BMP-TECH/qgroundcontrol,Hunter522/qgroundcontrol,dagoodma/qgroundcontrol,greenoaktree/qgroundcontrol,Hunter522/qgroundcontrol,devbharat/qgroundcontrol,BMP-TECH/qgroundcontrol,iidioter/qgroundcontrol,fizzaly/qgroundcontrol,RedoXyde/PX4_qGCS,CornerOfSkyline/qgroundcontrol,hejunbok/qgroundcontrol,mihadyuk/qgroundcontrol,cfelipesouza/qgroundcontrol,fizzaly/qgroundcontrol,mihadyuk/qgroundcontrol,dagoodma/qgroundcontrol,kd0aij/qgroundcontrol,remspoor/qgroundcontrol,mihadyuk/qgroundcontrol,Hunter522/qgroundcontrol,CornerOfSkyline/qgroundcontrol,CornerOfSkyline/qgroundcontrol,caoxiongkun/qgroundcontrol,scott-eddy/qgroundcontrol,LIKAIMO/qgroundcontrol,BMP-TECH/qgroundcontrol,remspoor/qgroundcontrol,RedoXyde/PX4_qGCS,jy723/qgroundcontrol,hejunbok/qgroundcontrol,nado1688/qgroundcontrol