Fix NTP time detection on OpenWrt Portduino (#11919)

* Fix NTP time detection on OpenWrt Portduino

* chore: trunk fmt

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Co-authored-by: stm32repo <orangepimaster@gmail.com>
Co-authored-by: Ben Meadors <benmmeadors@gmail.com>

src/main.cpp

@@ -447,6 +447,9 @@ void setup()
     std::string timeCommandResult = exec("timedatectl status | grep synchronized | grep yes -c");
     if (timeCommandResult[0] == '1') {
         ourQuality = RTCQualityNTP;
+    } else if (access("/var/state/dnsmasqsec", F_OK) == 0) {
+        // OpenWrt marks the system time as valid after successful NTP synchronization.
+        ourQuality = RTCQualityNTP;
     }
 #endif