MSC_Tests: Implement early classmark sending in LU

Change-Id: I019d51703c60203c7cb83a77dc7ca4b3d6623e24
diff --git a/msc_tests/BSC_ConnectionHandler.ttcn b/msc_tests/BSC_ConnectionHandler.ttcn
index 2d6036f..a404ed3 100644
--- a/msc_tests/BSC_ConnectionHandler.ttcn
+++ b/msc_tests/BSC_ConnectionHandler.ttcn
@@ -142,6 +142,8 @@
 	/* Send BSSAP_Conn_Req with COMPL L3 INFO to MSC */
 	f_bssap_compl_l3(l3_lu);
 
+	BSSAP.send(ts_BSSMAP_ClassmarkUpd);
+
 	if (expect_auth) {
 		/* FIXME */
 	}