added uptime seconds functions

osal/FreeRTOS/Clock.cpp

@@ -67,6 +67,13 @@ ReturnValue_t Clock::getUptime(uint32_t* uptimeMs) {
 	return HasReturnvaluesIF::RETURN_OK;
 }
 
+
+uint32_t Clock::getUptimeSeconds() {
+	timeval uptime = getUptime();
+	return uptime.tv_sec;
+}
+
+
 ReturnValue_t Clock::getClock_usecs(uint64_t* time) {
 	timeval time_timeval;
 	ReturnValue_t result = getClock_timeval(&time_timeval);