aoip_debug/interactive: Start mgcpgw

Change-Id: I32079a7ed70e23d9bf170672e2220bc44d434e5d
diff --git a/suites/aoip_debug/interactive.py b/suites/aoip_debug/interactive.py
index 4f56d5c..7cc1b76 100755
--- a/suites/aoip_debug/interactive.py
+++ b/suites/aoip_debug/interactive.py
@@ -9,6 +9,7 @@
 
 hlr.start()
 msc.start()
+mgcpgw.start()
 
 bsc.bts_add(bts)
 bsc.start()