Upgrade erofs-utils to v1.7.1 am: 4e70d39759

Original change: https://android-review.googlesource.com/c/platform/external/erofs-utils/+/2800993

Change-Id: I1de850f7ec89299fa0f8866fec6d4f21ef9b2b5a
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>