mx51evk: Configure CONFIG_BOOTDELAY to one second

One second is enough time for users to react in case they want to stop the
booting process.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
diff --git a/include/configs/mx51evk.h b/include/configs/mx51evk.h
index 89feaed..e8c6618 100644
--- a/include/configs/mx51evk.h
+++ b/include/configs/mx51evk.h
@@ -149,7 +149,7 @@
 
 #define CONFIG_CMD_DATE
 
-#define CONFIG_BOOTDELAY	3
+#define CONFIG_BOOTDELAY	1
 
 #define CONFIG_ETHPRIME		"FEC0"