Merge "isBlockAligned to use uint64_t" into main am: be85b80f23

Original change: https://android-review.googlesource.com/c/platform/system/core/+/3248296

Change-Id: Ie1769a02d5fb520f51d18ba20581ef06668c2747
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>