Add DeviceConfig flag for ContentSuggestionsService.

Test: presubmit
Bug: 123289833

Change-Id: I016a7585bc03e25bd494b9e3bd3080416d67ee50

core/java/android/provider/DeviceConfig.java

@@ -158,6 +158,14 @@ public final class DeviceConfig {
     @SystemApi
     public static final String NAMESPACE_INTELLIGENCE_ATTENTION = "intelligence_attention";
 
+    /**
+     * Definitions for properties related to Content Suggestions.
+     *
+     * @hide
+     */
+    public static final String NAMESPACE_INTELLIGENCE_CONTENT_SUGGESTIONS =
+            "intelligence_content_suggestions";
+
     /**
      * Namespace for all media native related features.
      *

services/core/java/com/android/server/am/SettingsToPropertiesMapper.java

@@ -81,6 +81,7 @@ public class SettingsToPropertiesMapper {
     static final String[] sDeviceConfigScopes = new String[] {
         DeviceConfig.NAMESPACE_ACTIVITY_MANAGER_NATIVE_BOOT,
         DeviceConfig.NAMESPACE_INPUT_NATIVE_BOOT,
+        DeviceConfig.NAMESPACE_INTELLIGENCE_CONTENT_SUGGESTIONS,
         DeviceConfig.NAMESPACE_MEDIA_NATIVE,
         DeviceConfig.NAMESPACE_NETD_NATIVE,
         DeviceConfig.NAMESPACE_RUNTIME_NATIVE,