Update language to comply with Android's inclusive language guidance

See https://source.android.com/setup/contribute/respectful-code for reference

Bug: 161896447
Test: robotest & manual
Change-Id: Ibe64a68d7bddf84780dfac33555c097ff55c97a8

src/com/android/settings/fuelgauge/batterytip/tips/BatteryTip.java

@@ -17,7 +17,6 @@
 package com.android.settings.fuelgauge.batterytip.tips;
 
 import android.content.Context;
-import android.content.res.ColorStateList;
 import android.os.Parcel;
 import android.os.Parcelable;
 import android.util.SparseIntArray;
@@ -137,7 +136,7 @@ public abstract class BatteryTip implements Comparable<BatteryTip>, Parcelable {
 
     /**
      * Check whether data is still make sense. If not, try recover.
-     * @param context used to do sanity check
+     * @param context used to do validate check
      */
     public void sanityCheck(Context context) {
         // do nothing