When kolla VIP address is changed the cell0 database connection is
now updated to the new address.
Closes-bug: #1915302
Change-Id: I35be54efb5aaa230702d0cebaae04f1e64c3bca3
Signed-off-by: Roman Krček <roman.krcek@tietoevry.com>
(cherry picked from commit ab6eb989ae6fc9fc74cd7b156ba8bc18ad5c784e)