video: Encapsulate font in video_font_data.h

This patch moves all the font configuration values into video_font_data.h
so they are all in the right place with the font. The video_font.h now only
includes video_font_data.h and will allow us to select and include different
font once more fonts are added.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Anatolij Gustschin <agust@denx.de>
[agust: fixed build warning for mcc200]
Signed-off-by: Anatolij Gustschin <agust@denx.de>
diff --git a/include/video_font_data.h b/include/video_font_data.h
index 4e544f0..346a162 100644
--- a/include/video_font_data.h
+++ b/include/video_font_data.h
@@ -8,7 +8,12 @@
 #ifndef _VIDEO_FONT_DATA_
 #define _VIDEO_FONT_DATA_
 
-static unsigned char video_fontdata[VIDEO_FONT_SIZE] = {
+#define VIDEO_FONT_CHARS	256
+#define VIDEO_FONT_WIDTH	8
+#define VIDEO_FONT_HEIGHT	16
+#define VIDEO_FONT_SIZE		(VIDEO_FONT_CHARS * VIDEO_FONT_HEIGHT)
+
+static unsigned char __maybe_unused video_fontdata[VIDEO_FONT_SIZE] = {
 
 	/* 0 0x00 '^@' */
 	0x00, /* 00000000 */