SettingsProvider: Add support for overriding lockscreen.disabled default value

Signed-off-by: Mike Lockwood <lockwood@android.com>
diff --git a/core/java/android/provider/Settings.java b/core/java/android/provider/Settings.java
index 8f59484..0aad64a 100644
--- a/core/java/android/provider/Settings.java
+++ b/core/java/android/provider/Settings.java
@@ -1836,6 +1836,12 @@
         public static final String LOCKSCREEN_SOUNDS_ENABLED = "lockscreen_sounds_enabled";
 
         /**
+         * Whether the lockscreen should be completely disabled.
+         * @hide
+         */
+        public static final String LOCKSCREEN_DISABLED = "lockscreen.disabled";
+
+        /**
          * URI for the low battery sound file.
          * @hide
          */