The charm classes were reworked to support k8s and machine charms
as part of this OSBaseOperatorCharm no longer contains k8s
components. However the k8s ovn charms have their own charm class
OSBaseOVNOperatorCharm which is for ovn k8s services so should
be based in OSBaseOperatorCharmk8s
Change-Id: Ieb43eb22c8c91c7b6776b3d309e244578d4d7c13