gapps: Enable game dashboard

* https://github.com/LeafOS-Blobs/proprietary_vendor_gapps/blob/1f2a2bf17e31d0e4520306f78437359d3d07b7c8/overlay/GmsOverlay/res/values/config.xml#L65

Change-Id: Ic12d8b57fc65e7609d9617db6d14923a2ee9490a
diff --git a/etc/sysconfig/game_service.xml b/etc/sysconfig/game_service.xml
new file mode 100644
index 0000000..3fbc025
--- /dev/null
+++ b/etc/sysconfig/game_service.xml
@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="utf-8"?>
+
+<!-- These are configurations that should exist on devices that support Game Service -->
+<config>
+    <!-- This feature is meant to be the feature identifying devices that support
+         Game Service -->
+    <feature name="android.software.game_service" />
+    <!-- Signals that the device is using the Google Games Service provided by
+         GMSCore. This subjects the device to addition GTS testing and also
+         serves as a mechanism to target devices that should download the
+         required GMSCore modules. -->
+    <feature name="com.google.android.feature.GMS_GAME_SERVICE" />
+</config>