integration fix: let oaisim work again

In case of oaisim, dl_phy_sync_success has to be called
by initial_sync, as it used to be.

We introduce an #if OAISIM, this is not elegant, but will
do it for the moment.

openair1/PHY/LTE_TRANSPORT/initial_sync.c

@@ -494,7 +494,7 @@ int initial_sync(PHY_VARS_UE *ue, runmode_t mode)
     #endif
 
 // send sync status to higher layers later when timing offset converge to target timing
-#if 0
+#if OAISIM
       if (ue->mac_enabled==1) {
 	LOG_I(PHY,"[UE%d] Sending synch status to higher layers\n",ue->Mod_id);
 	//mac_resynch();