planning: skip time_diff check on first frame in RL_TEST mode, to allow first frame proceed
planning: skip time_diff check on first frame in RL_TEST mode, to allow first frame proceed

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