[occm] fix lbaas logs

[kayrus]

What this PR does / why we need it:

To avoid loadbalancer.go:1478] "Target node label %s=%s is set to LoadBalancer service %s" env="production" default/openstack-loadbalancer="(MISSING)"

Which issue this PR fixes(if applicable):
fixes #

Special notes for reviewers:

Introduced in #2601

Release note:

NONE

[stephenfin]

/test openstack-cloud-controller-manager-e2e-test

We somehow got the wrong instance type in GCE again 😕

[stephenfin]

/lgtm

[kayrus]

@stephenfin can you approve as well?

[zetaab]

/approve

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: zetaab

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[k8s-ci-robot]

@kayrus: The following tests failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
openstack-cloud-controller-manager-ovn-e2e-test	1d91391	link	unknown	/test openstack-cloud-controller-manager-ovn-e2e-test
openstack-cloud-controller-manager-e2e-test	1d91391	link	unknown	/test openstack-cloud-controller-manager-e2e-test

Full PR test history. Your PR dashboard. Please help us cut down on flakes by linking to an open issue when you hit one in your PR.

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