Added reserved space is the case where network backup is disabled

GpsTracker/Config.cpp

@@ -73,6 +73,8 @@ namespace config {
 					POSITIONS_CONFIG_NET_DEFAULT_APN,
 					POSITIONS_CONFIG_NET_DEFAULT_URL,
 				},
+#else
+				"",
 #endif
 				CONFIG_DEFAULT_BATTERY_ALERT_LEVEL1,
 				CONFIG_DEFAULT_BATTERY_ALERT_LEVEL2,

GpsTracker/Config.h

@@ -66,6 +66,8 @@ struct config_t {
 	uint16_t lastEntry;				//sizeof = 2
 #if BACKUP_ENABLE_NETWORK
 	networkConfig_t network;		//sizeof = 73
+#else
+	char reserved[73];
 #endif
 	uint8_t alertBatteryLevel1;		//sizeof = 1
 	uint8_t alertBatteryLevel2;		//sizeof = 1