kirkwood: ib62x0: add CONFIG_SYS_GENERIC_BOARD define

Signed-off-by: Luka Perkov <luka@openwrt.org>
Acked-by: Stefan Roese <sr@denx.de>
CC: Prafulla Wadaskar <prafulla@marvell.com>

include/configs/ib62x0.h

@@ -9,6 +9,8 @@
 #ifndef _CONFIG_IB62x0_H
 #define _CONFIG_IB62x0_H
 
+#define CONFIG_SYS_GENERIC_BOARD
+
 /*
  * Version number information
  */