XXXX introduce drv_sectohz

*** 3443,3453 ****
          /*
           * Fire a watchdog timer
           */
          igb->watchdog_tid =
              timeout(igb_local_timer,
!             (void *)igb, 1 * drv_usectohz(1000000));
  
  }
  
  /*
   * igb_enable_watchdog_timer - Enable and start the driver watchdog timer
--- 3443,3453 ----
          /*
           * Fire a watchdog timer
           */
          igb->watchdog_tid =
              timeout(igb_local_timer,
!             (void *)igb, drv_sectohz(1));
  
  }
  
  /*
   * igb_enable_watchdog_timer - Enable and start the driver watchdog timer