console: add device link to QemuConsoles

So it is possible to figure which qemu console displays which device.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
diff --git a/include/ui/console.h b/include/ui/console.h
index b8b0441..6e69f7f 100644
--- a/include/ui/console.h
+++ b/include/ui/console.h
@@ -278,7 +278,8 @@
     void (*update_interval)(void *opaque, uint64_t interval);
 } GraphicHwOps;
 
-QemuConsole *graphic_console_init(const GraphicHwOps *ops,
+QemuConsole *graphic_console_init(DeviceState *dev,
+                                  const GraphicHwOps *ops,
                                   void *opaque);
 
 void graphic_hw_update(QemuConsole *con);