Support multiple condition for getDeviceOverrideValue

Bug: 8556975
Change-Id: I29d3a305b6ac3d8e3620c6d8592d85047d62bf48
diff --git a/java/res/values/keypress-vibration-durations.xml b/java/res/values/keypress-vibration-durations.xml
index 45c51e7..53aad72 100644
--- a/java/res/values/keypress-vibration-durations.xml
+++ b/java/res/values/keypress-vibration-durations.xml
@@ -29,6 +29,6 @@
         <!-- Nexus 10 -->
         <item>HARDWARE=manta,16</item>
         <!-- Default value for unknown device -->
-        <item>DEFAULT,20</item>
+        <item>,20</item>
     </string-array>
 </resources>