dm: arm: imx: cx9020: migrate to dm_video

Enable DM_VIDEO in config and don't overwrite console so it can be set
from environment

Acked-by: Patrick Bruenn <p.bruenn@beckhoff.com>
Signed-off-by: Steffen Dirkwinkel <s.dirkwinkel@beckhoff.com>
diff --git a/include/configs/mx53cx9020.h b/include/configs/mx53cx9020.h
index 9bf5d91..ab61a07 100644
--- a/include/configs/mx53cx9020.h
+++ b/include/configs/mx53cx9020.h
@@ -159,11 +159,7 @@
 #define CONFIG_SYS_MMC_ENV_DEV 0
 
 /* Framebuffer and LCD */
+#define CONFIG_IMX_VIDEO_SKIP
 #define CONFIG_PREBOOT
-#define CONFIG_SYS_CONSOLE_OVERWRITE_ROUTINE
-#define CONFIG_VIDEO_BMP_RLE8
-#define CONFIG_SPLASH_SCREEN
-#define CONFIG_BMP_16BPP
-#define CONFIG_VIDEO_LOGO
 
 #endif /* __CONFIG_H */