Fix listener parsing with ipv6 addresses (#11861)
Fix listener parsing with ipv6 addresses (#11861)

* Fix listener parsing with ipv6 addresses

Signed-off-by: Serguei Bezverkhi <c33ca6227aebfb54a1e138877913c69b58e15edc@cisco.com>

* Fixing typo

Signed-off-by: Serguei Bezverkhi <c33ca6227aebfb54a1e138877913c69b58e15edc@cisco.com>

smawson/istio,geeknoid/istio,smawson/istio,geeknoid/istio,smawson/istio,istio/istio,smawson/istio,istio/istio,istio/istio,smawson/istio,istio/istio,geeknoid/istio,smawson/istio,geeknoid/istio,geeknoid/istio,istio/istio,geeknoid/istio