API for notification listener for Companioon apps

Test: 1. Trigger the confitrmation dialog.
Ensure it looks exactly like the one from settings.
2. Call an API without associating the appa first
Ensure exception is thrown with a message mentioning the need to associate 1st
Change-Id: I0b280e9bcef7f9d21ce7c9dfeaf2703945481efd
diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index b38cea7..02351e5 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -2645,6 +2645,10 @@
                 android:value="true" />
         </activity>
 
+        <!-- Confirmation dialog for enabling notification access from CompanionDeviceManager -->
+        <activity android:name=".notification.NotificationAccessConfirmationActivity"
+                  android:theme="@android:style/Theme.DeviceDefault.Light.Dialog.Alert" />
+
         <receiver android:name=".widget.SettingsAppWidgetProvider"
                 android:label="@string/gadget_title"
                 android:exported="false"