XXXX introduce drv_sectohz

@@ -440,11 +440,11 @@
         pps_fan_timeout_hz = drv_usectohz(PPS_FAN_TIMEOUT_USEC);
         bd_insert_delay_hz = drv_usectohz(BRD_INSERT_DELAY_USEC);
         bd_insert_retry_hz = drv_usectohz(BRD_INSERT_RETRY_USEC);
         bd_remove_timeout_hz = drv_usectohz(BRD_REMOVE_TIMEOUT_USEC);
         blink_led_timeout_hz = drv_usectohz(BLINK_LED_TIMEOUT_USEC);
-        overtemp_timeout_hz = drv_usectohz(OVERTEMP_TIMEOUT_SEC * MICROSEC);
+        overtemp_timeout_hz = drv_sectohz(OVERTEMP_TIMEOUT_SEC);
         keyswitch_timeout_hz = drv_usectohz(KEYSWITCH_TIMEOUT_USEC);
 
         /*
          * Map in the registers sets that OBP hands us. According
          * to the sun4u device tree spec., the register sets are as