[ostree] Add a missing #include to fix "make check"

[Colin Walters <walters src gnome org>]

commit 5d463ba57720ded9ff38eda753420a6eb66436ae
Author: Colin Walters <walters verbum org>
Date:   Wed Mar 2 10:29:41 2016 -0500

    Add a missing #include to fix "make check"

 src/libostree/ostree-gpg-verify-result.h |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/src/libostree/ostree-gpg-verify-result.h b/src/libostree/ostree-gpg-verify-result.h
index 61180fb..8894afd 100644
--- a/src/libostree/ostree-gpg-verify-result.h
+++ b/src/libostree/ostree-gpg-verify-result.h
@@ -21,6 +21,7 @@
 #pragma once
 
 #include <gio/gio.h>
+#include <ostree-types.h>
 
 G_BEGIN_DECLS