Fix for call timer resetting when starting IMS conference call. 3/4

- Pass the connect time of the connection representing the conference
to the conference itself.  This ensures when we notify telecom of the
conference, its connect time will reflect the earliest call.

Bug: 18959443
Change-Id: I96b6ba2e862f45b5ae0d624b483d3278afa67516
diff --git a/src/com/android/services/telephony/ImsConference.java b/src/com/android/services/telephony/ImsConference.java
index 5a15a47..e692a30 100644
--- a/src/com/android/services/telephony/ImsConference.java
+++ b/src/com/android/services/telephony/ImsConference.java
@@ -177,6 +177,11 @@
             TelephonyConnection conferenceHost) {
 
         super(null);
+
+        // Specify the connection time of the conference to be the connection time of the original
+        // connection.
+        setConnectTimeMillis(conferenceHost.getOriginalConnection().getConnectTime());
+
         mTelephonyConnectionService = telephonyConnectionService;
         setConferenceHost(conferenceHost);
         if (conferenceHost != null && conferenceHost.getCall() != null