[PATCH] libata: make ata_dump_id() take @id instead of @dev

Make ata_dump_id() take @id instead of @dev.  This is preparation for
splitting ata_dev_identify().

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>