[gnome-photos] Update to latest libgd

[Debarshi Ray <debarshir src gnome org>]

commit 9854282884856e0376ad9bd30e7785cdd656b2fa
Author: Debarshi Ray <debarshir gnome org>
Date:   Sat Aug 12 14:12:25 2017 +0200

    Update to latest libgd
    
    GdMainIconBoxChild fixes needed for showing names of collections.

 libgd |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/libgd b/libgd
index 63d13ea..10de851 160000
--- a/libgd
+++ b/libgd
@@ -1 +1 @@
-Subproject commit 63d13ea49990ac23a214acc4f8a7c0d8b0405cfd
+Subproject commit 10de85141f91859c9f1708c317df5129b4172f0c