Fix bug 3342149, edit lock screen settings text.

Change-Id: Ic6691b5ebce1c074143dbe49b0486f693e4236f6
diff --git a/res/values/strings.xml b/res/values/strings.xml
index 6b4770d..669e928 100644
--- a/res/values/strings.xml
+++ b/res/values/strings.xml
@@ -580,7 +580,7 @@
 
     <!-- Security Picker --><skip />
     <!--  Title for security picker to choose the unlock method: None/Pattern/PIN/Password [CHAR LIMIT=22] -->
-    <string name="lock_settings_picker_title">Screen unlock security</string>
+    <string name="lock_settings_picker_title">Configure lock screen</string>
 
     <!--  Main Security lock settings --><skip />
     <!--  Title for PreferenceScreen to launch picker for security method when there is none [CHAR LIMIT=22] -->