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

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

Change-Id: I19a15622e948c21cc2cc4875499682772f618a81
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>