[BugFix: ZSTACK-42806] format bm2 chassis status
[BugFix: ZSTACK-42806] format bm2 chassis status

MatheMatrix/zstack,zstackio/zstack,zstackio/zstack,AlanJager/zstack,MatheMatrix/zstack,MatheMatrix/zstack,AlanJager/zstack,zstackio/zstack,AlanJager/zstack