use var: kube_apiserver_address

[liupeng0518]

What type of PR is this?

Uncomment only one /kind <> line, hit enter to put that in a new line, and remove leading whitespaces from that line:

/kind api-change
/kind bug
/kind cleanup
/kind design
/kind documentation
/kind failing-test
/kind feature
/kind flake

What this PR does / why we need it:
just use var: kube_apiserver_address

Which issue(s) this PR fixes:

Fixes #

Special notes for your reviewer:

Does this PR introduce a user-facing change?:

Use `kube_apiserver_address` variable for advertiseAddress

[MrFreezeex]

Thanks for the cleanup /lgtm

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: liupeng0518, MrFreezeex

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[MrFreezeex]

/lgtm