Add a missing @Override annotation

Test: none (no functional changes)

Change-Id: Ia91a15d9ca52d953c657278ea02ce0d1586ce0a0

src/com/android/settings/fuelgauge/PowerUsageDetail.java

@@ -538,6 +538,7 @@ public class PowerUsageDetail extends PowerUsageBase implements Button.OnClickLi
         }
     }
 
+    @Override
     public void onClick(View v) {
         doAction((Integer) v.getTag());
     }