Update the default list of target distros

Change-Id: I5596c03db43b127a237391e153b1a10b6ee25ccb
diff --git a/packaging.mk b/packaging.mk
index 999fd23..792f43a 100644
--- a/packaging.mk
+++ b/packaging.mk
@@ -2,7 +2,7 @@
 PPA=ppa:named-data/ppa-dev
 
 # List of target distributions
-DISTROS=trusty xenial artful
+DISTROS=trusty xenial artful bionic
 
 DEBUILD=debuild -S