Create the feature flag for Provider model development

Provider model is a feature which improves networks
Settings UX.

Bug: 167474581
Test: compile
Change-Id: Ib9a5a3fb1026fa5863afd4e23121391bf762fd08
diff --git a/core/java/android/util/FeatureFlagUtils.java b/core/java/android/util/FeatureFlagUtils.java
index 9cc6b9f..9244647 100644
--- a/core/java/android/util/FeatureFlagUtils.java
+++ b/core/java/android/util/FeatureFlagUtils.java
@@ -44,6 +44,8 @@
     /** @hide */
     public static final String SETTINGS_DO_NOT_RESTORE_PRESERVED =
             "settings_do_not_restore_preserved";
+    /** @hide */
+    public static final String SETTINGS_PROVIDER_MODEL = "settings_provider_model";
 
     private static final Map<String, String> DEFAULT_FLAGS;
 
@@ -67,6 +69,7 @@
         DEFAULT_FLAGS.put("settings_tether_all_in_one", "false");
         DEFAULT_FLAGS.put("settings_silky_home", "false");
         DEFAULT_FLAGS.put("settings_contextual_home", "false");
+        DEFAULT_FLAGS.put(SETTINGS_PROVIDER_MODEL, "false");
     }
 
     /**