Adds a menu item for additional battery info to battery settings.

Bug: 33352540
Test: No additional test failures.

Change-Id: Ibfc1a9463c93d3c087ed712fe45d3d0717472c6a

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

@@ -24,4 +24,6 @@ public interface PowerUsageFeatureProvider {
    * Check whether location setting is enabled
    */
   boolean isLocationSettingEnabled(String[] packages);
+
+  boolean isAdditionalBatteryInfoEnabled();
 }