i.MX31 PDK: Enable generic board for i.MX31 PDK

Enable CONFIG_SYS_GENERIC_BOARD for the i.MX31 PDK board.

Tested on actual hardware.

Signed-off-by: Magnus Lilja <lilja.magnus@gmail.com>
Acked-by: Fabio Estevam <fabio.estevam@freescale.com>

include/configs/mx31pdk.h

@@ -20,6 +20,8 @@
 #define CONFIG_ARM1136			/* This is an arm1136 CPU core */
 #define CONFIG_MX31			/* in a mx31 */
 
+#define CONFIG_SYS_GENERIC_BOARD
+
 #define CONFIG_DISPLAY_CPUINFO
 #define CONFIG_DISPLAY_BOARDINFO