Handle RSL_MT_SACCH_INFO_MODIFY messages at ASCI tests

Most ASCI tests will fail, if this message is ignored during tests. This
message is used to set SI 10 at the BTS.

Change-Id: I1742da0fa978ca96d9cf7ef0bef3359007996829
diff --git a/bsc/BSC_Tests_ASCI.ttcn b/bsc/BSC_Tests_ASCI.ttcn
index a97e0db..8c8b66c 100644
--- a/bsc/BSC_Tests_ASCI.ttcn
+++ b/bsc/BSC_Tests_ASCI.ttcn
@@ -357,6 +357,10 @@
 		log("VGCS: Got RSL DATA REQ on channel");
 		repeat;
 	}
+	[] RSL.receive(tr_RSL_SACCH_INF_MOD(g_chan_nr, ?)) {
+		log("VGCS: Got RSL SACCH INFO MODIFY on channel");
+		repeat;
+	}
 }
 
 private function f_delay_bts() runs on MSC_ConnHdlr {
@@ -472,6 +476,10 @@
 		COORD.send(COORD_VGCS_UPLINK_BUSY);
 		repeat;
 		}
+	[] RSL.receive(tr_RSL_SACCH_INF_MOD(g_chan_nr, ?)) {
+		log("VGCS: Got RSL SACCH INFO MODIFY on channel");
+		repeat;
+	}
 	[] COORD.receive(COORD_UPLINK_REQUEST_CONFIRM) { repeat; }
 	}