Settings: Extra Ethernet settings on ValueCAN 4 and RAD-Pluto

include/icsneo/device/tree/radpluto/radplutosettings.h

@@ -61,11 +61,15 @@ typedef struct {
 		uint8_t usbSelect;
 		uint8_t pad;
 	} custom;
+
+	ETHERNET_SETTINGS2 ethernet2;
 } radpluto_settings_t;
 #pragma pack(pop)
 
 #ifdef __cplusplus
 
+static_assert(sizeof(radpluto_settings_t) == 322, "RAD-Pluto Settings are not packed correctly!");
+
 #include <iostream>
 
 class RADPlutoSettings : public IDeviceSettings {