MX5: mx53loco: do not overwrite the console

On this board, the console is always set to the serial line.
Do not allow to overwrite it when video is enabled.

Signed-off-by: Stefano Babic <sbabic@denx.de>
CC: Fabio Estevam <fabio.estevam@freescale.com>
Tested-by: Fabio Estevam <fabio.estevam@freescale.com>
diff --git a/include/configs/mx53loco.h b/include/configs/mx53loco.h
index 597c4e4..24ec140 100644
--- a/include/configs/mx53loco.h
+++ b/include/configs/mx53loco.h
@@ -221,6 +221,8 @@
 #define CONFIG_VIDEO_IPUV3
 #define CONFIG_CFB_CONSOLE
 #define CONFIG_VGA_AS_SINGLE_DEVICE
+#define CONFIG_SYS_CONSOLE_IS_IN_ENV
+#define CONFIG_SYS_CONSOLE_OVERWRITE_ROUTINE
 #define CONFIG_VIDEO_BMP_RLE8
 #define CONFIG_SPLASH_SCREEN
 #define CONFIG_BMP_16BPP