debian/control: change maintainer to the Osmocom team / mailing list

Change-Id: I1bb002b257d4bef83d181d615411e443c1831f00
diff --git a/debian/control b/debian/control
index 33a9650..00dcf38 100644
--- a/debian/control
+++ b/debian/control
@@ -1,7 +1,7 @@
 Source: osmo-mgw
 Section: net
 Priority: extra
-Maintainer: Alexander Couzens <lynxis@fe80.eu>
+Maintainer: Osmocom team <openbsc@lists.osmocom.org>
 Build-Depends: debhelper (>=9),
                dh-autoreconf,
                pkg-config,