debian: set compat level to 10

Related: OS#5958
Change-Id: I6ee4aace6bf7c246338408c41f790189d75d5488
diff --git a/debian/compat b/debian/compat
index ec63514..f599e28 100644
--- a/debian/compat
+++ b/debian/compat
@@ -1 +1 @@
-9
+10
diff --git a/debian/control b/debian/control
index 3698922..e18d693 100644
--- a/debian/control
+++ b/debian/control
@@ -2,7 +2,7 @@
 Maintainer: Osmocom team <openbsc@lists.osmocom.org>
 Section: libs
 Priority: optional
-Build-Depends: debhelper (>= 9),
+Build-Depends: debhelper (>= 10),
                autotools-dev,
                autoconf,
                automake,