Fix wrong linear navigation order when TalkBack is on

Set correct accessibility traversal order on QSPanel.

Test: runtest systemui
Test: manual - 1.Turn on Talk back 2.Open Quick settings 3.Swipe right
to navigate
Bug: 72956034

Change-Id: I8e790160ebb5ea6c34557c293d68232e414bf497
diff --git a/packages/SystemUI/res/layout/qs_panel.xml b/packages/SystemUI/res/layout/qs_panel.xml
index 72ff653..8c57ae8 100644
--- a/packages/SystemUI/res/layout/qs_panel.xml
+++ b/packages/SystemUI/res/layout/qs_panel.xml
@@ -57,6 +57,8 @@
         android:layout_marginBottom="@dimen/qs_footer_height"
         android:elevation="4dp"
         android:background="@android:color/transparent"
+        android:focusable="true"
+        android:accessibilityTraversalBefore="@id/qs_carrier_text"
     />
 
     <include layout="@layout/quick_status_bar_expanded_header" />