[gnome-apps-nightly] Use a fresh config.sub & config.guess to build exiv2

[Tristan Van Berkom <tvb src gnome org>]

commit 28e5acf3b6de14e546e68a7405ddec814681c93f
Author: Tristan Van Berkom <tristan vanberkom codethink co uk>
Date:   Fri Sep 9 16:19:39 2016 +0900

    Use a fresh config.sub & config.guess to build exiv2
    
    The copies in the tarball are too old to properly detect aarch64

 org.gnome.Photos.json |    7 +++++++
 1 files changed, 7 insertions(+), 0 deletions(-)
---
diff --git a/org.gnome.Photos.json b/org.gnome.Photos.json
index 7dd0415..fef1ef1 100644
--- a/org.gnome.Photos.json
+++ b/org.gnome.Photos.json
@@ -159,6 +159,13 @@
                 {
                     "type": "patch",
                     "path": "exiv2-no-builddir.patch"
+                },
+                {
+                    "type": "shell",
+                    "commands": [
+                        "cp -f /usr/share/gnu-config/config.sub ./config/",
+                        "cp -f /usr/share/gnu-config/config.guess ./config/"
+                    ]
                 }
             ]
         },