MSC_Tests: Extend timeout waiting for Clear Cmd in TC_establish_and_nothing

This should fix the bogus failures we are seeing in this test. The pcap
usually shows that the Clear Command does arrive after about 5 seconds,
but sometimes the internal timer fires before that. Double the timeout
of the test here.

Change-Id: I998cfb52a3813dd9f76d3787e4d0d448752ec847
diff --git a/msc/MSC_Tests.ttcn b/msc/MSC_Tests.ttcn
index edaa61b..56ac3d3 100644
--- a/msc/MSC_Tests.ttcn
+++ b/msc/MSC_Tests.ttcn
@@ -1173,7 +1173,7 @@
 	f_perform_lu();
 
 	f_establish_fully();
-	f_expect_clear();
+	f_expect_clear(10.0);
 }
 testcase TC_establish_and_nothing() runs on MTC_CT {
 	var BSC_ConnHdlr vc_conn;