[neutron][8.0] functional tests for keepalived failing

[Alex Ermolov]

*-functional-* gates started failing after last code merge from upstream (stable/liberty) branch.
For details see https://review.fuel-infra.org/#/c/21205

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[Alexander Ignatov (aignatov)]

Alex, these functional tests are always broken with keepalived. Your patch doesn't trigger new failures. Please ignore results of these tests. Once it gets fixed in 10.0 we'll try to backport this.

Here is appropriate bug for that:
https://bugs.launchpad.net/mos/+bug/1590708