debian: set compat level to 10

Related: OS#5958
Change-Id: I393d7e1211e6f9ace420a874a0582208c939bbc2
diff --git a/debian/control b/debian/control
index 5c8ed03..a24564e 100644
--- a/debian/control
+++ b/debian/control
@@ -1,8 +1,8 @@
 Source: libgtpnl
-Maintainer: Harald Welte <laforge@gnumonks.org>
+Maintainer: Osmocom team <openbsc@lists.osmocom.org>
 Section: libs
 Priority: optional
-Build-Depends: debhelper (>= 9),
+Build-Depends: debhelper (>= 10),
                autotools-dev,
                autoconf,
                automake,