ports.h: Use same VTY port number for osmo-mgw and osmo-bsc_mgcp

It was decided that osmo-mgw as direct successor of osmo-bsc_mgcp
will use the same VTY port number (similar to osmo-nitb, osmo-bsc
and osmo-bsc-sccplite all using the same VTY port number)

Change-Id: Iec1da9f3b4d170416279f05876d9e1ae2970c577
diff --git a/include/osmocom/vty/ports.h b/include/osmocom/vty/ports.h
index ab43f05..ff0b58c 100644
--- a/include/osmocom/vty/ports.h
+++ b/include/osmocom/vty/ports.h
@@ -14,6 +14,7 @@
 #define OSMO_VTY_PORT_BTS	4241	/* also: osmo_pcap_server */
 #define OSMO_VTY_PORT_NITB_BSC	4242
 #define OSMO_VTY_PORT_BSC_MGCP	4243
+#define OSMO_VTY_PORT_MGW	OSMO_VTY_PORT_BSC_MGCP
 #define OSMO_VTY_PORT_BSC_NAT	4244
 #define OSMO_VTY_PORT_SGSN	4245
 #define OSMO_VTY_PORT_GBPROXY	4246
@@ -28,5 +29,4 @@
 #define OSMO_VTY_PORT_HLR	4258
 /* 4259 used by control interface */
 #define OSMO_VTY_PORT_GGSN	4260
-#define OSMO_VTY_PORT_MGW	4261
 /* When adding/changing port numbers, keep docs and wiki in sync. See above. */