[ostree] libglnx: Update from master

[Colin Walters <walters src gnome org>]

commit 02b3a81d11054d8d2f37aa7b54c7433f4ac30db9
Author: Colin Walters <walters verbum org>
Date:   Fri Apr 17 16:15:55 2015 -0400

    libglnx: Update from master
    
    No real changes, but I'd like to use some of the new APIs later.

 libglnx |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/libglnx b/libglnx
index 371172b..381ca54 160000
--- a/libglnx
+++ b/libglnx
@@ -1 +1 @@
-Subproject commit 371172bcfd869867cf1c2847fcbbb3aa22adddb6
+Subproject commit 381ca54ee3a47de291d26a5db8772732fb4a9d59