update wallpaper picker package

Change-Id: Ibf54512964d848280a86443ce7ec77e8881ee09e
diff --git a/res/values/config.xml b/res/values/config.xml
index c26f62b..55a6199 100644
--- a/res/values/config.xml
+++ b/res/values/config.xml
@@ -75,7 +75,7 @@
     <string name="launcher_activity_logic_class" translatable="false"></string>
 
     <!-- Package name of the default wallpaper picker. -->
-    <string name="wallpaper_picker_package" translatable="false">com.android.wallpaper</string>
+    <string name="wallpaper_picker_package" translatable="false">com.android.customization</string>
 
     <!-- Whitelisted package to retrieve packagename for badge. Can be empty. -->
     <string name="shortcutinfo_badgepkg_whitelist" translatable="false"></string>