Add postgresql dev package as testonly neutron dep

The neutron functional job needs to build psycopg2 which has a
dependency on postgresql dev packages.

Change-Id: Ie5c8e2bd02e148d6638f4a4c1fbf6667c30313d5
diff --git a/files/debs/neutron b/files/debs/neutron
index 5a59b22..3f4b6d2 100644
--- a/files/debs/neutron
+++ b/files/debs/neutron
@@ -6,6 +6,7 @@
 libmysqlclient-dev  # testonly
 mysql-server #NOPRIME
 sudo
+postgresql-server-dev-all       # testonly
 python-iso8601
 python-paste
 python-routes
diff --git a/files/rpms-suse/neutron b/files/rpms-suse/neutron
index 50ee145..66d6e4c 100644
--- a/files/rpms-suse/neutron
+++ b/files/rpms-suse/neutron
@@ -5,6 +5,7 @@
 iptables
 iputils
 mariadb # NOPRIME
+postgresql-devel        # testonly
 python-eventlet
 python-greenlet
 python-iso8601
diff --git a/files/rpms/neutron b/files/rpms/neutron
index 59152d6..d11dab7 100644
--- a/files/rpms/neutron
+++ b/files/rpms/neutron
@@ -9,6 +9,7 @@
 mysql-devel  # testonly
 mysql-server # NOPRIME
 openvswitch # NOPRIME
+postgresql-devel        # testonly
 python-eventlet
 python-greenlet
 python-iso8601