Add NSX VS to NSX LBS also if NSX load balancer bindings are
found in the database. This alone indeed does not imply the virtual
server is already associated with the load balancer as the bindings
could have been created when a member for another pool was added.
In order to avoid wasteful NSX round-trips this patch moves the check
for VS-LBS association after the addition of the member to the pool.
This allows for executing the check only for the first member of
a given pool.
Change-Id: I239f4c6bcf07279c523ba861abfe27e8029015c6
0f41d6ec49