[sushi] flatpak: enable wayland permissions

[Cosimo Cecchi <cosimoc src gnome org>]

commit f05f019d5b1d9e199d572d30f10298125aaa9f87
Author: Cosimo Cecchi <cosimo endlessm com>
Date:   Mon Jun 3 07:56:33 2019 -0700

    flatpak: enable wayland permissions

 flatpak/org.gnome.NautilusPreviewer.json | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/flatpak/org.gnome.NautilusPreviewer.json b/flatpak/org.gnome.NautilusPreviewer.json
index 6554edb..05ff8af 100644
--- a/flatpak/org.gnome.NautilusPreviewer.json
+++ b/flatpak/org.gnome.NautilusPreviewer.json
@@ -18,6 +18,7 @@
     ],
     "finish-args": [
         "--socket=x11",
+        "--socket=wayland",
         "--share=ipc",
         "--device=dri",
         "--talk-name=org.freedesktop.FileManager1",