imx: ventana: add GW5520 support

The GW5520 has an IMX6Q SoC with 512MB of DDR3, 256MB of NAND flash as well as:
 * 2x MiniPCIe sockets
 * 2x USB host sockets
 * 2x i210 GigE
 * HDMI out
 * digital I/O expansion

Signed-off-by: Tim Harvey <tharvey@gateworks.com>
diff --git a/board/gateworks/gw_ventana/ventana_eeprom.h b/board/gateworks/gw_ventana/ventana_eeprom.h
index d64b910..af12711 100644
--- a/board/gateworks/gw_ventana/ventana_eeprom.h
+++ b/board/gateworks/gw_ventana/ventana_eeprom.h
@@ -109,6 +109,7 @@
 	GW52xx,
 	GW53xx,
 	GW54xx,
+	GW552x,
 	GW_UNKNOWN,
 	GW_BADCRC,
 };