XXXX introduce drv_sectohz

*** 193,203 ****
  
                  /* Wait for IBF = 0 */
                  status = kcs_wait_for_ibf(sc, 0);
                  if (KCS_STATUS_STATE(status) == KCS_STATUS_STATE_WRITE)
                          break;
!                 delay(drv_usectohz(1000000));
          }
  
          if (KCS_STATUS_STATE(status) != KCS_STATUS_STATE_WRITE)
                  /* error state */
                  return (0);
--- 193,203 ----
  
                  /* Wait for IBF = 0 */
                  status = kcs_wait_for_ibf(sc, 0);
                  if (KCS_STATUS_STATE(status) == KCS_STATUS_STATE_WRITE)
                          break;
!                 delay(drv_sectohz(1));
          }
  
          if (KCS_STATUS_STATE(status) != KCS_STATUS_STATE_WRITE)
                  /* error state */
                  return (0);