Base implementation of WFC disclaimer UI

Test: manual - Check that no error occurred when changing the wifi
calling settings to turn on.
Test: auto - Passed WifiCallingSettingsForSubTest,
WifiCallingDisclaimerFragmentTest and DisclaimerItemListAdapterTest.
Bug: 67872298

Change-Id: I789f530d3e16baa6e56feaa4269f6696976f747e
diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index 7625e78..4bb1a8c 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -3124,6 +3124,18 @@
 
         <activity android:name=".homepage.contextualcards.ContextualCardFeedbackDialog"
                   android:theme="@android:style/Theme.DeviceDefault.Light.Dialog.Alert" />
+
+        <activity
+            android:name="Settings$WifiCallingDisclaimerActivity"
+            android:label="@string/wifi_calling_settings_title"
+            android:taskAffinity="com.android.settings">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <category android:name="android.intent.category.DEFAULT" />
+            </intent-filter>
+            <meta-data android:name="com.android.settings.FRAGMENT_CLASS"
+                android:value="com.android.settings.wifi.calling.WifiCallingDisclaimerFragment" />
+        </activity>
         <!-- This is the longest AndroidManifest.xml ever. -->
     </application>
 </manifest>