fsck.f2fs: check sit types for node or data only
fsck.f2fs: check sit types for node or data only

Previously, check_sit_types didn't handle different numbers of active logs and
SSR cases. But, it didn't cause any problem since fixing sit types is harmless.
Nevertheless, we still don't need to change them all.

Change-Id: I7c3e4d354c9f0091f56011978ad7ffd5553f076c
Signed-off-by: Jaegeuk Kim <71255387a32c360dfbe6dfb7aaeb123bf1dc8cb6@kernel.org>

Yu-AndroidM/android_external_f2fs-tools,Yu-AndroidM/android_external_f2fs-tools