OMAP3: mt_ventoux: activate GPIO4

Signed-off-by: Stefano Babic <sbabic@denx.de>

include/configs/mt_ventoux.h

@@ -31,6 +31,7 @@
 #define CONFIG_BOOTFILE		"uImage"
 #define CONFIG_AUTO_COMPLETE
 
+#define CONFIG_OMAP3_GPIO_4
 #define CONFIG_HOSTNAME mt_ventoux
 
 /*