call: set startTimeStamp before tracking the call

When adding a call to a ContactMethod the lastUsedChanged is emitted
if the startTimeStamp > 0. We will need this signal to reorder
the recentmodel.

Issue: #75334
Change-Id: Ic469b75a789ab2683566bd02de2fa4e724dcea77

src/call.cpp

@@ -1635,11 +1635,11 @@ void CallPrivate::call()
             m_PeerName = contact->formattedName();
     }
 
+    setStartTimeStamp();
     CallModel::instance()->registerCall(q_ptr);
 
     connect(m_pPeerContactMethod, SIGNAL(presentChanged(bool)), this, SLOT(updated()));
     m_pPeerContactMethod->addCall(q_ptr);
-    setStartTimeStamp();
 
     // m_pDialNumber is now deprecated by m_pPeerContactMethod
     emit q_ptr->dialNumberChanged(QString());