XXXX introduce drv_sectohz

@@ -742,11 +742,11 @@
 hermon_kstat_perfcntr64_update_thread(void *arg)
 {
         hermon_state_t          *state = (hermon_state_t *)arg;
         hermon_ks_info_t        *ksi = state->hs_ks_info;
         uint_t                  i;
-        clock_t                 delta = drv_usectohz(1000000);
+        clock_t                 delta = drv_sectohz(1);
 
         mutex_enter(&ksi->hki_perfcntr64_lock);
         /*
          * Every one second update the values 64 bit software counters
          * for all ports. Exit if HERMON_PERFCNTR64_THREAD_EXIT flag is set.