SUW: update TV theming for 12

* setupdesign now uses a layout-land
* Rearrange welcome activity
* Add a padding of 56dp for each activity based on
  external/setupdesign/main/res/values/dimens.xml
  ´sud_glif_icon_margin_top´

Change-Id: I77ec3d1c3d62a66aeb76233eccafbea96804e701

res/layout/setup_lineage_settings.xml

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <!--
      Copyright (C) 2015 The CyanogenMod Project
-     Copyright (C) 2017-2021 The LineageOS Project
+                   2017-2022 The LineageOS Project
 
      Licensed under the Apache License, Version 2.0 (the "License");
      you may not use this file except in compliance with the License.
@@ -26,7 +26,8 @@
         android:orientation="vertical"
         android:layout_width="match_parent"
         android:layout_height="match_parent"
-        style="@style/SudContentFrame">
+        style="@style/SudContentFrame"
+        android:layout_marginTop="@dimen/base_margin_top">
 
         <FrameLayout
             android:id="@+id/page"