Fix minor bug in ELBDM_GetTimeStep_Gravity to properly check AnyCell across all ranks#461

hyschive merged 1 commit intogamer-project:maingamer-project/gamer:mainfrom

hsinhaoHHuang:BugfixELBDMdtGravityhsinhaoHHuang/gamer:BugfixELBDMdtGravityCopy head branch name to clipboard