[gnome-sdk-images] Add upower (needed by WebKitGTK+)

[Michael Catanzaro <mcatanzaro src gnome org>]

commit f338972838ac1094897a405897a00028f77ae3ff
Author: Michael Catanzaro <mcatanzaro igalia com>
Date:   Mon Nov 13 21:41:07 2017 -0600

    Add upower (needed by WebKitGTK+)
    
    Power management is important. How can nothing be using upower yet?
    
    Can't wait to see what dependencies this will be missing.

 org.gnome.Sdk.json.in |    9 +++++++++
 1 files changed, 9 insertions(+), 0 deletions(-)
---
diff --git a/org.gnome.Sdk.json.in b/org.gnome.Sdk.json.in
index 2162243..6b0b05d 100644
--- a/org.gnome.Sdk.json.in
+++ b/org.gnome.Sdk.json.in
@@ -758,6 +758,15 @@
             ]
         },
         {
+            "name": "upower",
+            "sources": [
+                {
+                    "type": "git",
+                    "url": "https://anongit.freedesktop.org/git/upower.git";
+                }
+            ]
+        },
+        {
             "name": "webkitgtk4",
             "cleanup-platform": [ "/libexec/webkit2gtk-4.0/MiniBrowser" ],
             "buildsystem": "cmake",