[SCSI] qla1280.c - fix result for device Busy and Queue Full

I discovered that the qla1280 driver does not send the correct status
to the midlayer when it gets Queue Full or Busy from a device.

Signed-off-by: Jeremy Higdon <jeremy@sgi.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>