fsck.f2fs: calculate the total size correctly
fsck.f2fs: calculate the total size correctly

Correctly calculate the total FS size in init_sb_info(), for sector
size may not be 512 bytes.

Signed-off-by: Junling Zheng <d8a19a6b2fd71ccd811c7e898d2ee898871ccf31@huawei.com>
Signed-off-by: Jaegeuk Kim <71255387a32c360dfbe6dfb7aaeb123bf1dc8cb6@kernel.org>

TeamExodus/external_f2fs-tools,TeamExodus/external_f2fs-tools