Add missing version to codename mappings

Charm only included version metadata up to Train; add version
mappings for Ussuri->Yoga.

Change-Id: I90e368307776bf3968faed0343eae3fb1d0c0d4b

src/lib/charm/openstack/manila_ganesha.py

@@ -210,6 +210,11 @@ class ManilaGaneshaCharm(charms_openstack.charm.HAOpenStackCharm,
             ('7', 'rocky'),
             ('8', 'stein'),
             ('9', 'train'),
+            ('10', 'ussuri'),
+            ('11', 'victoria'),
+            ('12', 'wallaby'),
+            ('13', 'xena'),
+            ('14', 'yoga'),
         ]),
     }