fibmap.f2fs: add bdev information

This patch shows devname and start_lba based on zero sector.
fibmap reports related lba, sometimes we want to know absolute lba of
file to compare with blktrace.

Signed-off-by: Changman Lee <cm224.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
1 file changed