tests, integ: add test for empty static IP address

[ffmancera]

Signed-off-by: Fernando Fernandez Mancera [email protected]

[ffmancera]

https://github.com/nmstate/nmstate/issues/1201

[kubevirt-bot]

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

Test name	Commit	Details	Required	Rerun command
pull-nmstate-integ_tier1-k8s	89795d48d266f538f209004b789e79a9f5d5d08e	link	false	/test pull-nmstate-integ_tier1-k8s

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[stale[bot]]

Thank you for your contribution! There was no activity in this pull request recently. To avoid pull requests to pile up, an automated process marked this pull request as stale. It will close this pull request if no further activity occurs. The current policy is available at: https://github.com/nmstate/nmstate/blob/base/.github/stale.yml

[cathay4t]

I have fixed the verification error at https://github.com/nmstate/nmstate/pull/2179 by treating empty IPv4 address as ipv4 disabled. For IPv4 link local address, user can add it like normal IP address. Closing.