f2fs_utils: use PRI macro to print uint64 am: 2c5fd57c1b am: 11655b85e8 am: 1b542fe8fb

Original change: https://android-review.googlesource.com/c/platform/system/extras/+/2073853

Change-Id: Icd4bc21295a28402f9f057bfdb2303718d0c1b59
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>