Fix for call timer resetting when starting IMS conference call. 1/4

- Added support in Conference for specifying the connect time when the
conference is created.

Bug: 18959443
Change-Id: I501edde3b62f6bf021eb7455089e80626013da12

telecomm/java/android/telecom/ConnectionService.java

@@ -883,7 +883,8 @@ public abstract class ConnectionService extends Service {
                     conference.getPhoneAccountHandle(),
                     conference.getState(),
                     conference.getConnectionCapabilities(),
-                    connectionIds);
+                    connectionIds,
+                    conference.getConnectTimeMillis());
             mAdapter.addConferenceCall(id, parcelableConference);
 
             // Go through any child calls and set the parent.