UPSTREAM: f2fs: expose some sectors to user in inline data or dentry case

commit 5b4267d195dd887c4412e34b5a7365baa741b679 upstream.

If there's some data written through inline data or dentry, we need to shouw
st_blocks. This fixes reporting zero blocks even though there is small written
data.

Cc: stable@vger.kernel.org
Reviewed-by: Chao Yu <yuchao0@huawei.com>
[Jaegeuk Kim: avoid link file for quotacheck]
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Signed-off-by: Amit Pundir <amit.pundir@linaro.org>

Bug: 67651285
Bug: 67600404
Change-Id: I9ad5cb137eb627b9fd22740d2ab98e0221433c95