[gnome-photos/wip/rishi/import-2: 4/6] Update to latest libgd

[Debarshi Ray <debarshir src gnome org>]

commit f4c9ae0b2d942e19da09115b189941bb95657d93
Author: Debarshi Ray <debarshir gnome org>
Date:   Thu Feb 8 04:14:50 2018 +0100

    Update to latest libgd
    
    GdMainIconBoxChild shows a spinner to reflect GdMainBoxItem::pulse.
    
    https://gitlab.gnome.org/GNOME/gnome-photos/issues/29

 libgd | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/libgd b/libgd
index 10de8514..6085c294 160000
--- a/libgd
+++ b/libgd
@@ -1 +1 @@
-Subproject commit 10de85141f91859c9f1708c317df5129b4172f0c
+Subproject commit 6085c29403e01b6142e5f721a6a998ff4ef428e9