[gdm] Revert "Drop locked down /org/gnome/desktop/session/session-name setting"

[Ray Strode <halfline src gnome org>]

commit e2b75834538d1d4d94614d3841c32065f3798ad1
Author: Ray Strode <rstrode redhat com>
Date:   Thu Jun 29 13:00:06 2017 -0400

    Revert "Drop locked down /org/gnome/desktop/session/session-name setting"
    
    This reverts commit 9fb36b5bef44bfe4aa1dda52196e08480638ce35.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=784340

 .../defaults/locks/00-upstream-settings-locks      |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/data/dconf/defaults/locks/00-upstream-settings-locks 
b/data/dconf/defaults/locks/00-upstream-settings-locks
index 784708f..9cecec6 100644
--- a/data/dconf/defaults/locks/00-upstream-settings-locks
+++ b/data/dconf/defaults/locks/00-upstream-settings-locks
@@ -10,6 +10,7 @@
 /org/gnome/desktop/lockdown/disable-print-setup
 /org/gnome/desktop/lockdown/disable-save-to-disk
 /org/gnome/desktop/lockdown/disable-user-switching
+/org/gnome/desktop/session/session-name
 /org/gnome/desktop/sound/event-sounds
 /org/gnome/settings-daemon/plugins/media-keys/calculator
 /org/gnome/settings-daemon/plugins/media-keys/eject