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

[Alexander Larsson <alexl src gnome org>]

commit 953159545b4b894ca00d159b0580511240766396
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 |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/org.gnome.Sdk.json.in b/org.gnome.Sdk.json.in
index fde6e25..c81d9cd 100644
--- a/org.gnome.Sdk.json.in
+++ b/org.gnome.Sdk.json.in
@@ -13,6 +13,8 @@
         "org.freedesktop.Platform.Timezones",
         "org.freedesktop.Platform.GStreamer",
         "org.freedesktop.Platform.Icontheme",
+        "org.freedesktop.Platform.VAAPI.Intel",
+        "org.freedesktop.Platform.ffmpeg",
         "org.freedesktop.Sdk.Extension",
         "org.gtk.Gtk3theme"
     ],