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/widget/SlidingTabLayout.java

@@ -25,10 +25,10 @@ import android.widget.FrameLayout;
 import android.widget.LinearLayout;
 import android.widget.TextView;
 
-import com.android.settings.R;
-
 import androidx.viewpager.widget.PagerAdapter;
 
+import com.android.settings.R;
+
 /**
  * To be used with ViewPager to provide a tab indicator component which give constant feedback as
  * to the user's scroll progress.