audio: add siren_is_on into audio event
audio: add siren_is_on into audio event

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