Enable bionic/stein and disco/stein functional tests

Change-Id: I7f6ce5a265c50490bd30ae6ebfa447d1f59398e8

src/tests/dev-basic-disco-stein

@@ -0,0 +1,10 @@
+#!/usr/bin/env python
+
+"""Amulet tests on a basic aodh deployment on disco-stein."""
+
+from basic_deployment import AodhBasicDeployment
+
+if __name__ == '__main__':
+    deployment = AodhBasicDeployment(series='disco')
+    deployment.run_tests()
+

src/tests/gate-basic-bionic-stein

@@ -0,0 +1,10 @@
+#!/usr/bin/env python
+
+"""Amulet tests on a basic aodh deployment on bionic-stein."""
+
+from basic_deployment import AodhBasicDeployment
+
+if __name__ == '__main__':
+    deployment = AodhBasicDeployment(series='bionic',
+                                     openstack='cloud:bionic-stein')
+    deployment.run_tests()