[SeaBIOS] [PATCH] cbvga_set_mode: refine clear display logic

[Kevin O'Connor]

On Tue, Jun 26, 2018 at 09:21:52AM +0200, Gerd Hoffmann wrote:
> There is no need to skip text mode clearing.
> Clearing the framebuffer should be safe on legacy calls too.

Thanks.  Looks good to me.

-Kevin