Use system default vibration pattern

Bug: 9468462
Change-Id: Ifa46a56873c10888da8eaa2782fe07ef138a141b
diff --git a/java/res/values/strings.xml b/java/res/values/strings.xml
index 85abb08..cdc2c3a 100644
--- a/java/res/values/strings.xml
+++ b/java/res/values/strings.xml
@@ -79,6 +79,8 @@
 
     <!-- Units abbreviation for the duration (milliseconds) [CHAR LIMIT=10] -->
     <string name="abbreviation_unit_milliseconds"><xliff:g id="milliseconds">%s</xliff:g>ms</string>
+    <!-- The text that represents the current settings value is the system default [CHAR LIMIT=20] -->
+    <string name="settings_system_default">System default</string>
 
     <!-- Option name for enabling or disabling the use of names of people in Contacts for suggestion and correction [CHAR LIMIT=25] -->
     <string name="use_contacts_dict">Suggest Contact names</string>