XXXX introduce drv_sectohz

*** 551,561 ****
           * i2c device from which the key switch position is read.
           */
          if (regs[0] == 0 && regs[1] == 0x7c) {
                  abort_seq_handler = littleneck_abort_seq_handler;
                  keypoll_timeout_hz =
!                     drv_usectohz(LNECK_KEY_POLL_INTVL * MICROSEC);
                  littleneck_ks_poll(unitp);
          }
  
          ddi_prop_free(regs);
  
--- 551,561 ----
           * i2c device from which the key switch position is read.
           */
          if (regs[0] == 0 && regs[1] == 0x7c) {
                  abort_seq_handler = littleneck_abort_seq_handler;
                  keypoll_timeout_hz =
!                     drv_sectohz(LNECK_KEY_POLL_INTVL);
                  littleneck_ks_poll(unitp);
          }
  
          ddi_prop_free(regs);