When a load balancer failover was performed on a load balancer where
the VIP address is on a subnet that has no IP addresses available,
the VIP address may be deactivated.
This patch corrects the failover flow to not deallocate the VIP
address on a failover revert flow due to the subnet being out of
IP addresses.
Story: 2008625
Task: 41827
Change-Id: I1fe342d2bdf1301dd89ab7dfaa8e6a23e69c252b
(cherry picked from commit e3ab49c60a)
4c9d7405af