XXXX introduce drv_sectohz

*** 272,282 ****
  
                  return;
          }
  
          (void) cv_reltimedwait(&pp->pp_xfer_cmpl_cv, &ehcip->ehci_int_mutex,
!             drv_usectohz(EHCI_XFER_CMPL_TIMEWAIT * 1000000), TR_CLOCK_TICK);
  
          if (pp->pp_itw_head) {
                  USB_DPRINTF_L2(PRINT_MASK_LISTS, ehcip->ehci_log_hdl,
                      "ehci_wait_for_isoc_completion: "
                      "No transfers completion confirmation received");
--- 272,282 ----
  
                  return;
          }
  
          (void) cv_reltimedwait(&pp->pp_xfer_cmpl_cv, &ehcip->ehci_int_mutex,
!             drv_sectohz(EHCI_XFER_CMPL_TIMEWAIT), TR_CLOCK_TICK);
  
          if (pp->pp_itw_head) {
                  USB_DPRINTF_L2(PRINT_MASK_LISTS, ehcip->ehci_log_hdl,
                      "ehci_wait_for_isoc_completion: "
                      "No transfers completion confirmation received");