Add dhcp network support

[Karthik-K-N]

This PR contains the changes to create and use DHCP network. This would enable us to create dhcp based base image for capi using image builder.

[Karthik-K-N]

/hold for testing.

[Karthik-K-N]

This PR is ready for review,I have tested with image-builder and will create follow up PR to add instructions on how to do it.

Overall its works as expected, only thing is I am not able get end to end working , facing some ansible error and that I think is not related to this change.

    powervs: TASK [containerd : Copy in containerd config file etc/containerd/config.toml] ***
    powervs: An exception occurred during task execution. To see the full traceback, use -vvv. The error was: ansible.errors.AnsibleError: An unhandled exception occurred while templating '{{ containerd_wasm_shims_runtime_versions | from_json }}'. Error was a <class 'json.decoder.JSONDecodeError'>, original message: Expecting value: line 1 column 1 (char 0)
    powervs: fatal: [default]: FAILED! => {"changed": false, "msg": "AnsibleError: An unhandled exception occurred while templating '{{ containerd_wasm_shims_runtime_versions | from_json }}'. Error was a <class 'json.decoder.JSONDecodeError'>, original message: Expecting value: line 1 column 1 (char 0)"}

[mkumatag]

/lgtm

[Karthik-K-N]

Rebased to resolve merge conflicts.

[mkumatag]

please don't bump the version to 0.5.2 because there is licence change in the recent version!

[Karthik-K-N]

Which version should I use then, I see with v0.4.0, I was hitting nil pointer error during make generate

[mkumatag]

Any latest v0.4.0 version but not 0.5.x

[mkumatag]

wait! I don't see licence file change for this package which is good, lets merge with this version update.

[mkumatag]

/lgtm

[ppc64le-cloud-bot]

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