Drivers: fixed warnings in const_variables.h
Drivers: fixed warnings in const_variables.h

xiaoxq/apollo,ycool/apollo,ApolloAuto/apollo,ycool/apollo,ycool/apollo,ycool/apollo,jinghaomiao/apollo,ycool/apollo,jinghaomiao/apollo,xiaoxq/apollo,ApolloAuto/apollo,ApolloAuto/apollo,jinghaomiao/apollo,ycool/apollo,ApolloAuto/apollo,ApolloAuto/apollo,wanglei828/apollo,jinghaomiao/apollo,xiaoxq/apollo,wanglei828/apollo,wanglei828/apollo,jinghaomiao/apollo,xiaoxq/apollo,jinghaomiao/apollo,wanglei828/apollo,xiaoxq/apollo,ApolloAuto/apollo,xiaoxq/apollo,wanglei828/apollo,wanglei828/apollo