scsi: qla2xxx: fix spelling mistake "retyring" -> "retrying"

Trivial fix to spelling mistakes in ql_dbg messages.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Himanshu Madhani <himanshu.madhani@qlogic.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>