f2fs: Convert to bdev_open_by_dev/path()

Convert f2fs to use bdev_open_by_dev/path() and pass the handle around.

CC: Jaegeuk Kim <jaegeuk@kernel.org>
CC: Chao Yu <chao@kernel.org>
CC: linux-f2fs-devel@lists.sourceforge.net
Acked-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Christian Brauner <brauner@kernel.org>
Signed-off-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/20230927093442.25915-23-jack@suse.cz


Signed-off-by: Christian Brauner <brauner@kernel.org>