FROMGIT: f2fs: compress: fix to check unreleased compressed cluster

Compressed cluster may not be released due to we can fail in
release_compress_blocks(), fix to handle reserved compressed
cluster correctly in reserve_compress_blocks().

Fixes: 4c8ff709 ("f2fs: support data compression")
Signed-off-by: Sheng Yong <shengyong@oppo.com>
Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

Bug: 313549450
(cherry picked from commit eb8fbaa5
 https://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs.git

 dev)
Change-Id: I2a4223efb548a921a8f28f45798709743e38e899
Signed-off-by: Daeho Jeong <daehojeong@google.com>