Convert printk() calls to structured logging.

[Damien]
Fix ata_port_dbg() format in atp867x_check_ports() to avoid compile
warnings with 32-bits arch.
Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>