UPSTREAM: erofs-utils: fsck: convert to use erofs_iterate_dir() am: 3fe921e9a2 am: 3754f5a045 am: 59352ea5eb am: 14eab01339

Original change: https://android-review.googlesource.com/c/platform/external/erofs-utils/+/1966840

Change-Id: Ib429db522162657881d2e089f4c88a516a1bdc1f