MSC_ConnectionHandler: Optionally check MM Info

The MM Info message is an optional message that is set to the MS usually
after the location update. It contains the full network name and time
information. At the moment the presence of this message is not checked
or expected since sending of MM-Info is explicitly disabled in the
osmo-msc configu.

This patch adds an optional check of MM Info that is disabled by
default.

Change-Id: I431f50c2ff3536f87f0c7c3caf23b7a38d501904
Related: OS#3615
diff --git a/library/L3_Templates.ttcn b/library/L3_Templates.ttcn
index 3918f3d..3978498 100644
--- a/library/L3_Templates.ttcn
+++ b/library/L3_Templates.ttcn
@@ -2972,6 +2972,26 @@
 	}
 }
 
+template PDU_ML3_NW_MS tr_ML3_MT_MM_Info := {
+	discriminator := '0101'B,
+	tiOrSkip := {
+		skipIndicator := '0000'B
+	},
+	msgs := {
+		mm := {
+			mMInformation := {
+				messageType := '110010'B,
+				nsd := '00'B,
+				fullNetworkName := *,
+				shortNetworkName := *,
+				localtimeZone := *,
+				univTime := *,
+				lSAIdentity := *,
+				networkDST := *
+			}
+		}
+	}
+}