Add wallpaper suggestion if one isn't set.

Change-Id: I81380323f0d4f5af842a81028a763219958833bc
diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index 8e58f48..a0b2b77 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -830,6 +830,20 @@
                 android:resource="@string/zen_mode_automation_suggestion_title" />
         </activity>
 
+        <activity android:name="Settings$WallpaperSuggestionActivity"
+                android:label="@string/wallpaper_settings_title"
+                android:exported="true"
+                android:taskAffinity="">
+            <intent-filter android:priority="1">
+                <action android:name="android.intent.action.MAIN" />
+                <category android:name="com.android.settings.suggested.category.SETTINGS_ONLY" />
+            </intent-filter>
+            <meta-data android:name="com.android.settings.FRAGMENT_CLASS"
+                android:value="com.android.settings.WallpaperTypeSettings" />
+            <meta-data android:name="com.android.settings.title"
+                android:resource="@string/wallpaper_suggestion_title" />
+        </activity>
+
         <activity android:name="Settings$ZenModeScheduleRuleSettingsActivity"
                 android:exported="true"
                 android:taskAffinity="">