Sort imports

Having consistent import order will reduce chance of merge
conflict between internal and external master

Test: rebuild
Change-Id: I0b1a170967ddcce7f388603fd521f6ed1eeba30b

src/com/android/settings/fuelgauge/batterytip/BatteryTipLoader.java

@@ -18,6 +18,8 @@ package com.android.settings.fuelgauge.batterytip;
 
 import android.content.Context;
 
+import androidx.annotation.VisibleForTesting;
+
 import com.android.internal.os.BatteryStatsHelper;
 import com.android.settings.fuelgauge.BatteryInfo;
 import com.android.settings.fuelgauge.BatteryUtils;
@@ -37,8 +39,6 @@ import java.util.ArrayList;
 import java.util.Collections;
 import java.util.List;
 
-import androidx.annotation.VisibleForTesting;
-
 /**
  * Loader to compute and return a battery tip list. It will always return a full length list even
  * though some tips may have state {@code BaseBatteryTip.StateType.INVISIBLE}.