bcm968380gerg: add nand support

Enable the nand support (driver and command)
in the configuration of the board bcm96838gerg.

Signed-off-by: Philippe Reynes <philippe.reynes@softathome.com>
diff --git a/include/configs/broadcom_bcm968380gerg.h b/include/configs/broadcom_bcm968380gerg.h
index 6126a88..355f3ef 100644
--- a/include/configs/broadcom_bcm968380gerg.h
+++ b/include/configs/broadcom_bcm968380gerg.h
@@ -7,3 +7,10 @@
 #include <configs/bmips_bcm6838.h>
 
 #define CONFIG_ENV_SIZE			(8 * 1024)
+
+#ifdef CONFIG_NAND
+#define CONFIG_SYS_MAX_NAND_DEVICE	1
+#define CONFIG_SYS_NAND_SELF_INIT
+#define CONFIG_SYS_NAND_ONFI_DETECTION
+#define CONFIG_SYS_NAND_DRIVER_ECC_LAYOUT
+#endif /* CONFIG_NAND */