[gnome-photos] Update to latest libgd

[Cosimo Cecchi <cosimoc src gnome org>]

commit 2868115238993abdc75e3fbfc40830a37f48458a
Author: Cosimo Cecchi <cosimoc gnome org>
Date:   Tue Jan 22 18:02:54 2013 -0500

    Update to latest libgd
    
    https://bugzilla.gnome.org/show_bug.cgi?id=692342

 libgd |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/libgd b/libgd
index 81233c2..3b110dd 160000
--- a/libgd
+++ b/libgd
@@ -1 +1 @@
-Subproject commit 81233c2e68c6d6cc7fb4cd0a1b488c32583cb0f8
+Subproject commit 3b110dd27b65e5dc6591bfcbbf1799f549ce0d34