fix: 引入Settings的Module

Settings/aconfig/development/settings_core_flag_declarations.aconfig

@@ -0,0 +1,9 @@
+package: "com.android.settings.development"
+container: "system"
+
+flag {
+  name: "deprecate_list_activity"
+  namespace: "android_settings"
+  description: "Feature flag for deprecating ListActivity in Settings"
+  bug: "299195099"
+}