FROMGIT: f2fs: compress: fix to guarantee persisting compressed blocks by CP

If data block in compressed cluster is not persisted with metadata
during checkpoint, after SPOR, the data may be corrupted, let's
guarantee to write compressed page by checkpoint.

Fixes: 4c8ff709 ("f2fs: support data compression")
Reviewed-by: Daeho Jeong <daehojeong@google.com>
Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

Bug: 313549450
(cherry picked from commit 8a430dd4
 https://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs.git

 dev)
Change-Id: Ie52d0bc7d89ec3111f1f6e8140555358620e875c
Signed-off-by: Daeho Jeong <daehojeong@google.com>