[gnome-sdk-images] Update waylant to 1.6, as needed by gtk3.

[Alexander Larsson <alexl src gnome org>]

commit 118affb832d11408b7dd1aa07a95130ef4c0a459
Author: Alexander Larsson <alexl redhat com>
Date:   Wed Aug 31 11:31:22 2016 +0200

    Update waylant to 1.6, as needed by gtk3.

 org.gnome.Sdk.json.in |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/org.gnome.Sdk.json.in b/org.gnome.Sdk.json.in
index 561dab4..8ccc7b4 100644
--- a/org.gnome.Sdk.json.in
+++ b/org.gnome.Sdk.json.in
@@ -244,8 +244,8 @@
             "sources": [
                  {
                      "type": "archive",
-                     "url": "http://wayland.freedesktop.org/releases/wayland-protocols-1.5.tar.xz";,
-                     "sha256": "7d0b426ccaeafc084fc579bb2a139f8ad4ea3492d54b7b0210d124c61fbeb2bf"
+                     "url": "http://wayland.freedesktop.org/releases/wayland-protocols-1.6.tar.xz";,
+                     "sha256": "9e4070bcaa38d38fa66bf055c6b5ad9c7c2553a78b2dbe5493fe0f3764d00e81"
                  }
             ]
         },