ui/console: call dpy_gfx_update() regardless of have_gfx

The function will handle the case when no listeners are gfx, without
extra meaningful cost.

This allows to get rid of DisplayState dependency in VC implementation.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20230830093843.3531473-8-marcandre.lureau@redhat.com>

ui/console.c

@@ -1087,7 +1087,7 @@ static int vc_chr_write(Chardev *chr, const uint8_t *buf, int len)
         console_putchar(s, buf[i]);
     }
     console_show_cursor(s, 1);
-    if (s->ds->have_gfx && s->update_x0 < s->update_x1) {
+    if (s->update_x0 < s->update_x1) {
         dpy_gfx_update(s, s->update_x0, s->update_y0,
                        s->update_x1 - s->update_x0,
                        s->update_y1 - s->update_y0);