Fix incorrect SetupChooseLockPattern layout

Root cause:
- The new added description TextView is too large
- sud_layout_description was add in sud_layout_content
  instead of sud_layout_header.

Solution:
- Set string lockpassword_choose_your_pattern_description
  to GlifLayout as it's description.(Header description)

Bug: 233666752
Fixes 239892091
Test: manual in setup flow, check choose lock pattern layouts
showing expectedly on both phone & tablet
Test: make RunSettingsRoboTests

Change-Id: Iabe503066434f8983dffb88d1c93f2bbf773b860

src/com/android/settings/password/SetupChooseLockPattern.java

@@ -143,7 +143,8 @@ public class SetupChooseLockPattern extends ChooseLockPattern {
             }
 
             final GlifLayout layout = getActivity().findViewById(R.id.setup_wizard_layout);
-            layout.setDescriptionText("");
+            layout.setDescriptionText(
+                    getString(R.string.lockpassword_choose_your_pattern_description));
         }
 
         @Override