Workaround for Installing OKD 3.11

This is originally an issue from openshift-ansible due to centos repo frozen for 7.6. Please check out the following links about this disccussion:

I have already applied a temporary fix for that:

openshift-vagrant/Vagrantfile

Lines 66 to 68 in ad01aae

    
               # Fix missing packages for openshift origin 3.11.0 
        
               # https://lists.openshift.redhat.com/openshift-archives/dev/2018-November/msg00005.html 
        
               [ "$(version #{OPENSHIFT_RELEASE})" -eq "$(version 3.11)" ] && yum install -y centos-release-openshift-origin311

	# Fix missing packages for openshift origin 3.11.0
	# https://lists.openshift.redhat.com/openshift-archives/dev/2018-November/msg00005.html
	[ "$(version #{OPENSHIFT_RELEASE})" -eq "$(version 3.11)" ] && yum install -y centos-release-openshift-origin311