DO NOT MERGE - f2fs-tools: do sanity check on xattr entry am: c208057ce9 am: 72c2d72a8c

Original change: https://googleplex-android-review.googlesource.com/c/platform/external/f2fs-tools/+/25151013

Change-Id: Id324086ac67c07de9043af7f6c2ede9e8b4a51cb
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>