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/include/video.h b/include/video.h
index 841f3dc..ddc2eeb 100644
--- a/include/video.h
+++ b/include/video.h
@@ -67,6 +67,7 @@
  * @flush_dcache:	true to enable flushing of the data cache after
  *		the LCD is updated
  * @cmap:	Colour map for 8-bit-per-pixel displays
+ * @fg_col_idx:	Foreground color code (bit 3 = bold, bit 0-2 = color)
  */
 struct video_priv {
 	/* Things set up by the driver: */
@@ -88,6 +89,7 @@
 	u32 colour_bg;
 	bool flush_dcache;
 	ushort *cmap;
+	u8 fg_col_idx;
 };
 
 /* Placeholder - there are no video operations at present */