CustomDNS feature enablement along with inclusion of 4.21 upstream installer#390

shaheen0b111 wants to merge 4 commits into

release-4.21openshift/installer-aro-wrapper:release-4.21from

shaheen0b111/ARO-22038-CustomDNS-Febopenshift/installer-aro-wrapper:shaheen0b111/ARO-22038-CustomDNS-FebCopy head branch name to clipboard