Add ESP32 RTOS timesync

tasmota/support_rtc.ino

@@ -400,6 +400,15 @@ void RtcSecond(void)
     } else {
       TasmotaGlobal.rules_flag.time_set = 1;
     }
+
+#ifdef ESP32
+    // Sync RTOS time to be used by SD Card time stamps
+    struct timeval tv;
+    tv.tv_sec = Rtc.local_time;
+    tv.tv_usec = 0;
+    settimeofday(&tv, nullptr);
+#endif  // ESP32
+
   } else {
     Rtc.utc_time++;  // Increment every second
   }