f2fs: add missing description for ipu_policy node

IPU policy can be disabled, let's add description for it and other policy.

Signed-off-by: Yangtao Li <frank.li@vivo.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Yangtao Li 2023-02-06 22:43:09 +08:00 • committed by Jaegeuk Kim
commit 9e615dbba4