fs/hpfs: convert printk to pr_foo()

fs/hpfs: convert printk to pr_foo()

No level printk in hptfs_error converted to pr_err (others to pr_warn or
pr_info)

This patch also fixes if/then/else checkpatch warnings

Signed-off-by: Fabian Frederick <[email protected]>
Cc: Mikulas Patocka <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>