block: fix block tray status

The tray status should change also if you eject empty block device.
Signed-off-by: NPavel Hrdina <phrdina@redhat.com>
Signed-off-by: NKevin Wolf <kwolf@redhat.com>

block.c

@@ -897,10 +897,10 @@ void bdrv_close(BlockDriverState *bs)
             bdrv_delete(bs->file);
             bs->file = NULL;
         }
-
-        bdrv_dev_change_media_cb(bs, false);
     }
 
+    bdrv_dev_change_media_cb(bs, false);
+
     /*throttling disk I/O limits*/
     if (bs->io_limits_enabled) {
         bdrv_io_limits_disable(bs);