mako: adjust default keybpress vibration

Bug 7049944

mako's vibrator has been recalibrated so reduce this to 5.

Change-Id: Ia53df175f5389e5fd1dc198e4877c4a4e7301559

java/res/values/keypress-vibration-durations.xml

@@ -22,7 +22,7 @@
         <!-- Build.HARDWARE,duration_in_milliseconds -->
         <item>herring,5</item>
         <item>tuna,5</item>
-        <item>mako,20</item>
+        <item>mako,5</item>
         <item>manta,16</item>
     </string-array>
 </resources>