Update Example6_PMP_with_L-Band_Keys_via_MQTT.ino

GNSS + Dead Reckoning is FixType 4, not FixType 3.

Author: niabassey

examples/NEO-D9S_and_NEO-D9C/Example6_PMP_with_L-Band_Keys_via_MQTT/Example6_PMP_with_L-Band_Keys_via_MQTT.ino

@@ -132,7 +132,7 @@ void printPVTdata(UBX_NAV_PVT_data_t *ubxDataStruct)
     Serial.print(F(" (2D)"));
   else if (fixType == 3)
     Serial.print(F(" (3D)"));
-  else if (fixType == 3)
+  else if (fixType == 4)
     Serial.print(F(" (GNSS + Dead Reckoning)"));
   else if (fixType == 5)
     Serial.print(F(" (Time Only)"));