Settings root close icon should be shown as default

Bug: 133338753
Test: Manual
Change-Id: I36c36b095315e2c0f957a9caed3e58f747e52c5e
diff --git a/res/values/config.xml b/res/values/config.xml
index 939d08c..9a31b51 100644
--- a/res/values/config.xml
+++ b/res/values/config.xml
@@ -27,7 +27,7 @@
     <!-- Whether premium SMS should be shown or not. -->
     <bool name="config_show_premium_sms">true</bool>
     <!-- Whether exit button in settings' root action bar should be shown or not -->
-    <bool name="config_show_settings_root_exit_icon">false</bool>
+    <bool name="config_show_settings_root_exit_icon">true</bool>
     <!-- Whether all preferences should always ignore UX Restrictions -->
     <bool name="config_always_ignore_ux_restrictions">false</bool>
     <!-- Array of Preference Keys that ignore UX Restrictions -->
diff --git a/tests/robotests/res/values/config.xml b/tests/robotests/res/values/config.xml
index 0b52270..8e168b0 100644
--- a/tests/robotests/res/values/config.xml
+++ b/tests/robotests/res/values/config.xml
@@ -20,4 +20,6 @@
     <string name="config_settings_hierarchy_root_fragment" translatable="false">com.android.car.settings.testutils.DummyFragment</string>
     <!-- explicitly set to unset string for testing purpose -->
     <string name="config_defaultAssistantComponentName" translatable="false">#+UNSET</string>
+    <!-- Whether exit button in settings' root action bar should be shown or not -->
+    <bool name="config_show_settings_root_exit_icon">true</bool>
 </resources>