f2fs: add missing sysfs description

There are some missing sysfs entries' description in document, add them.

Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Chao Yu 2017-10-28 16:52:29 +08:00 • committed by Jaegeuk Kim
commit b32d73abc6