video: cfb_console: flush cache in display_rle8_bitmap

Otherwise BMP RLE8 images are not properly displayed.

Signed-off-by: Sébastien Szymanski <sebastien.szymanski@armadeus.com>

drivers/video/cfb_console.c

@@ -1297,6 +1297,10 @@ next_run:
 			break;
 		}
 	}
+
+	if (cfb_do_flush_cache)
+		flush_cache(VIDEO_FB_ADRS, VIDEO_SIZE);
+
 	return 0;
 error:
 	printf("Error: Too much encoded pixel data, validate your bitmap\n");