Small initialization fixes:

  	o 'point-to-point preferred, else loop' is not a safe
  	  connection mode setting for ISP2200 boards.  Use
  	  'loop preferred, else point-to-point.'

  	o Add modules parameter to enable ZIO -- Support mode
  	  5 only.

  	o No point in doing a PRLI (process login) to the SNS
  	  port.

  	o Fix problem where the driver would incorrectly skip
  	  ports with the same domain and area of the HBA.
Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>