Allow telecom to bind to ICS for self-mgd calls

Also update javadoc to remove outdated information about self-managed
calls.

Bug: 279209119
Test: n/a
Change-Id: I6dba56f7afb8b383904a28042ad6e2a10e0a84b8

core/res/AndroidManifest.xml

@@ -8219,6 +8219,8 @@
         <service android:name="com.android.server.companion.datatransfer.contextsync.CallMetadataSyncInCallService"
                  android:permission="android.permission.BIND_INCALL_SERVICE"
                  android:exported="true">
+            <meta-data android:name="android.telecom.INCLUDE_SELF_MANAGED_CALLS"
+                       android:value="true" />
             <intent-filter>
                 <action android:name="android.telecom.InCallService"/>
             </intent-filter>

telecomm/java/android/telecom/TelecomManager.java

@@ -744,10 +744,6 @@ public class TelecomManager {
      * state of calls in the self-managed {@link ConnectionService}.  An example use-case is
      * exposing these calls to an automotive device via its companion app.
      * <p>
-     * This meta-data can only be set for an {@link InCallService} which also sets
-     * {@link #METADATA_IN_CALL_SERVICE_UI}. Only the default phone/dialer app, or a car-mode
-     * {@link InCallService} can see self-managed calls.
-     * <p>
      * See also {@link Connection#PROPERTY_SELF_MANAGED}.
      */
     public static final String METADATA_INCLUDE_SELF_MANAGED_CALLS =