[release-4.12] OCPBUGS-4895: Set ip=dhcp,dhcp6 for master nodes on dualstack#6706

openshift-merge-robot merged 1 commit intoopenshift:release-4.12openshift/installer:release-4.12from

openshift-cherrypick-robot:cherry-pick-6626-to-release-4.12openshift-cherrypick-robot/installer:cherry-pick-6626-to-release-4.12Copy head branch name to clipboard