embestmx6boards: Fix CONFIG_CONSOLE_DEV

mars and riot boards use UART2 as console, so CONFIG_CONSOLE_DEV should point
to 'ttymxc1' instead.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Tested-by: Iain Paton <ipaton0@gmail.com>
diff --git a/include/configs/embestmx6boards.h b/include/configs/embestmx6boards.h
index eb91c44..1d5fde6 100644
--- a/include/configs/embestmx6boards.h
+++ b/include/configs/embestmx6boards.h
@@ -20,7 +20,7 @@
 #include <linux/sizes.h>
 
 #define CONFIG_MXC_UART_BASE		UART2_BASE
-#define CONFIG_CONSOLE_DEV		"ttymxc0"
+#define CONFIG_CONSOLE_DEV		"ttymxc1"
 #define CONFIG_MMCROOT			"/dev/mmcblk1p2"
 
 #define PHYS_SDRAM_SIZE		(1u * 1024 * 1024 * 1024)