Add flag for Preference Service Consent dialog

Bug: 378552675
Flag: com.android.settingslib.flags.settings_preference_write_consent_enabled
Test: N/A
Change-Id: I1fa2ce8d80df346a997558b994a54b5d63d9dcc0
diff --git a/packages/SettingsLib/aconfig/settingslib.aconfig b/packages/SettingsLib/aconfig/settingslib.aconfig
index 81a2e6a..821ea21 100644
--- a/packages/SettingsLib/aconfig/settingslib.aconfig
+++ b/packages/SettingsLib/aconfig/settingslib.aconfig
@@ -166,3 +166,10 @@
     description: "Enable the ambient volume control in device details and hearing devices dialog."
     bug: "357878944"
 }
+
+flag {
+    name: "settings_preference_write_consent_enabled"
+    namespace: "android_settings"
+    description: "Enable the user consent prompt before writing sensitive preferences via service"
+    bug: "378552675"
+}