update changelog based on changes made to 1.2.x#2348

wilkermichael merged 2 commits intomainhashicorp/consul-k8s:mainfrom

mw/fix-changelog-based-on-1-2-x-rc-1-releasehashicorp/consul-k8s:mw/fix-changelog-based-on-1-2-x-rc-1-releaseCopy head branch name to clipboard