dm: video: support increased intensity (bold)

Support special rendition code 0 - reset attributes.
Support special rendition code 1 - increased intensity (bold).

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/video/video-uclass.c b/drivers/video/video-uclass.c
index 945b20d..b5bb8e0 100644
--- a/drivers/video/video-uclass.c
+++ b/drivers/video/video-uclass.c
@@ -117,9 +117,12 @@
 void video_set_default_colors(struct video_priv *priv)
 {
 #ifdef CONFIG_SYS_WHITE_ON_BLACK
-	priv->colour_fg = vid_console_color(priv, VID_WHITE);
+	/* White is used when switching to bold, use light gray here */
+	priv->fg_col_idx = VID_LIGHT_GRAY;
+	priv->colour_fg = vid_console_color(priv, VID_LIGHT_GRAY);
 	priv->colour_bg = vid_console_color(priv, VID_BLACK);
 #else
+	priv->fg_col_idx = VID_BLACK;
 	priv->colour_fg = vid_console_color(priv, VID_BLACK);
 	priv->colour_bg = vid_console_color(priv, VID_WHITE);
 #endif