[gnome-sdk-images/gnome-3-26] Inherit the ffmpeg extension from the base

[Alexander Larsson <alexl src gnome org>]

commit 61017fa1d47e26e2b41e41c5a92f4f31c45e7b6e
Author: Alexander Larsson <alexl redhat com>
Date:   Mon Jan 15 15:38:13 2018 +0100

    Inherit the ffmpeg extension from the base

 org.gnome.Sdk.json.in |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/org.gnome.Sdk.json.in b/org.gnome.Sdk.json.in
index da887ef..d5f06ce 100644
--- a/org.gnome.Sdk.json.in
+++ b/org.gnome.Sdk.json.in
@@ -14,6 +14,7 @@
         "org.freedesktop.Platform.GStreamer",
         "org.freedesktop.Platform.Icontheme",
         "org.freedesktop.Platform.VAAPI.Intel",
+        "org.freedesktop.Platform.ffmpeg",
         "org.freedesktop.Sdk.Extension",
         "org.gtk.Gtk3theme"
     ],