Don't Skip Checkpointing for F2fs

"Do not reboot with commit failure when ext4 userdata is wiped" has
caused a regression in cuttlefish on f2fs. Overlay.img rapidly grows to
the full userdata size. This updates that CL to only affect partitions
marked for block based checkpointing.

Test: Boot Cuttlefish, monitor overlay.img for 5 minutes
Bug: 285019395
Change-Id: I8aa37a97e847960afe8b368090a86c8835e6ca9e