universal7904: overlay: Enable config_unplugTurnsOnScreen

Change-Id: I39354cc601430aab62a31ecbcf5b6d6c2f960f6d
diff --git a/overlay/frameworks/base/core/res/res/values/config.xml b/overlay/frameworks/base/core/res/res/values/config.xml
index bc1f560..736e710 100644
--- a/overlay/frameworks/base/core/res/res/values/config.xml
+++ b/overlay/frameworks/base/core/res/res/values/config.xml
@@ -174,4 +174,7 @@
         <item>0</item>
         <item>40</item>
     </integer-array>
+
+    <!-- If this is true, the screen will come on when you unplug usb/power/whatever. -->
+    <bool name="config_unplugTurnsOnScreen">true</bool>
 </resources>