Address several outstanding problem within the various
  eh_*() functions:

  	o Fixup nested spinlock usage in error-hanlding
  	  functions.

  	o Set the Loop down timer during abort isp if loop
  	  was already down for the driver to detect cable
  	  is unplugged at min time.
Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>