video: Rename CONFIG_VIDEO_MX5

Rename CONFIG_VIDEO_MX5 as this driver can also be used on mx6.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
diff --git a/include/configs/mx51evk.h b/include/configs/mx51evk.h
index bd04c02..c3f4521 100644
--- a/include/configs/mx51evk.h
+++ b/include/configs/mx51evk.h
@@ -126,7 +126,7 @@
 /* Framebuffer and LCD */
 #define CONFIG_PREBOOT
 #define CONFIG_VIDEO
-#define CONFIG_VIDEO_MX5
+#define CONFIG_VIDEO_IPUV3
 #define CONFIG_CFB_CONSOLE
 #define CONFIG_VGA_AS_SINGLE_DEVICE
 #define CONFIG_VIDEO_BMP_RLE8