[gnome-sdk-images] Disable fatal warnings in gstreamer, as its currently breaking the build

[Alexander Larsson <alexl src gnome org>]

commit 6fc7377007d7586368e64d35e779dc8b62a34880
Author: Alexander Larsson <alexl redhat com>
Date:   Wed Apr 5 10:09:48 2017 +0200

    Disable fatal warnings in gstreamer, as its currently breaking the build
    
    The new g_object_newv deprecation is causing problems.

 org.gnome.Sdk.json.in |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/org.gnome.Sdk.json.in b/org.gnome.Sdk.json.in
index 958ba9b..454745a 100644
--- a/org.gnome.Sdk.json.in
+++ b/org.gnome.Sdk.json.in
@@ -401,7 +401,7 @@
         },
         {
             "name": "gstreamer",
-            "config-opts": ["--enable-debug", "--disable-examples" ],
+            "config-opts": ["--enable-debug", "--disable-examples", "--disable-fatal-warnings" ],
             "sources": [
                 {
                     "type": "git",