ASCI: Add tests for voice group/broadcast calls at MSC

Related: OS#4854
Change-Id: I4bbe739ea55ecf9f7ebf9ee413df69f29aa642f8
diff --git a/msc/MSC_Tests.ttcn b/msc/MSC_Tests.ttcn
index 0bd1b02..6f23e5f 100644
--- a/msc/MSC_Tests.ttcn
+++ b/msc/MSC_Tests.ttcn
@@ -13,6 +13,7 @@
  */
 
 friend module MSC_Tests_Iu;
+friend module MSC_Tests_ASCI;
 
 import from General_Types all;
 import from Osmocom_Types all;