imx: ventana: config: add gzwrite support

Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Reviewed-by: Stefano Babic <sbabic@denx.de>

include/configs/gw_ventana.h

@@ -143,6 +143,7 @@
 #define CONFIG_CMD_HDMIDETECT    /* detect HDMI output device */
 #define CONFIG_CMD_GSC
 #define CONFIG_CMD_EECONFIG      /* Gateworks EEPROM config cmd */
+#define CONFIG_CMD_UNZIP         /* gzwrite */
 #define CONFIG_RBTREE
 
 /* Ethernet support */