Reorder and clean up imports.

Test: rebuild
Change-Id: I178485c84ae7146f991fd77b6d7504b029942a68

src/com/android/settings/widget/BottomLabelLayout.java

@@ -18,7 +18,6 @@ package com.android.settings.widget;
 
 import android.annotation.Nullable;
 import android.content.Context;
-import androidx.annotation.VisibleForTesting;
 import android.util.AttributeSet;
 import android.view.Gravity;
 import android.view.View;
@@ -26,6 +25,8 @@ import android.widget.LinearLayout;
 
 import com.android.settingslib.R;
 
+import androidx.annotation.VisibleForTesting;
+
 /**
  * An extension of LinearLayout that automatically switches to vertical
  * orientation when it can't fit its child views horizontally.