Feature 10239: Distributed VCA

Update the osm-openapi to include the new NBI endpoints included in the
folowing commit:
 - https://osm.etsi.org/gerrit/#/c/osm/NBI/+/10574/



Change-Id: Ieed63b897956a5a7d496a54b3b5754c3b206c1a5
Signed-off-by: David Garcia <david.garcia@canonical.com>