Add packages for 19.04

Change-Id: I0a00865b2c0ce974a3497e4696d5a9a9e9eb8bc4
diff --git a/packaging.mk b/packaging.mk
index 4793151..c8cfd93 100644
--- a/packaging.mk
+++ b/packaging.mk
@@ -2,7 +2,7 @@
 PPA=ppa:named-data/ppa-dev
 
 # List of target distributions
-DISTROS=xenial bionic
+DISTROS=xenial bionic disco
 
 DEBUILD=debuild -S