XXXX introduce drv_sectohz

*** 4302,4312 ****
              (delayed < 3)) {
                  delayed += 1;
  
                  /* do a sleeping wait for one second */
                  ASSERT(!servicing_interrupt());
!                 delay(drv_usectohz(MICROSEC));
          }
  }
  
  static int
  bind_dip(dev_info_t *dip, void *arg)
--- 4302,4312 ----
              (delayed < 3)) {
                  delayed += 1;
  
                  /* do a sleeping wait for one second */
                  ASSERT(!servicing_interrupt());
!                 delay(drv_sectohz(1));
          }
  }
  
  static int
  bind_dip(dev_info_t *dip, void *arg)