MGCP_Test: fix typo

Change-Id: I1c860acb60267a9b4d8049bf231c49f9c915923b
diff --git a/mgw/MGCP_Test.ttcn b/mgw/MGCP_Test.ttcn
index dfbe263..a0c577a 100644
--- a/mgw/MGCP_Test.ttcn
+++ b/mgw/MGCP_Test.ttcn
@@ -2321,7 +2321,7 @@
 	}
 
 	/* create two local RTP emulations; create two connections on MGW EP, see if
-	 * exchanged data is converted between AMR octet-aligned and bandwith
+	 * exchanged data is converted between AMR octet-aligned and bandwidth
 	 * efficient-mode */
 	function f_TC_amr_x_x_rtp_conversion(octetstring pl0, octetstring pl1, charstring fmtp0, charstring fmtp1) runs on dummy_CT {
 		var RtpFlowData flow[2];