OS-14 sd attach should not issue potentially slow scsi commands (ddi-forceattach=1)

*** 84,88 ****
--- 84,94 ----
  
  #
  # Associate the driver with devid resolution.
  #
  ddi-devid-registrant=1;
+ 
+ #
+ # Force attach to avoid timing problems with deferred attach 
+ # and tools like format(1M).
+ #  
+ ddi-forceattach=1;