Add dependency on docker to openshift_docker role.
Add dependency on docker to openshift_docker role.

I think this is intended anytime a role uses openshift_docker.

Fixes issue where docker_version is ignored for rpm based installs. We
made the dependency in openshift_version conditional to allow use of
openshift_version without significantly impacting the system, however
nothing ever actually ran the docker role after that, resulting in
docker simply being installed via the rpm dependency on
atomic-openshift.

rjhowe/openshift-ansible,aveshagarwal/openshift-ansible,ttindell2/openshift-ansible,twiest/openshift-ansible,bparees/openshift-ansible,maxamillion/openshift-ansible,rjhowe/openshift-ansible,detiber/openshift-ansible,zhiwliu/openshift-ansible,mmahut/openshift-ansible,EricMountain-1A/openshift-ansible,jwhonce/openshift-ansible,akram/openshift-ansible,abutcher/openshift-ansible,rjhowe/openshift-ansible,liggitt/openshift-ansible,nak3/openshift-ansible,mmahut/openshift-ansible,sosiouxme/openshift-ansible,akram/openshift-ansible,markllama/openshift-ansible,EricMountain-1A/openshift-ansible,miminar/openshift-ansible,maxamillion/openshift-ansible,gburges/openshift-ansible,rjhowe/openshift-ansible,jwhonce/openshift-ansible,zhiwliu/openshift-ansible,git001/openshift-ansible,wbrefvem/openshift-ansible,brenton/openshift-ansible,git001/openshift-ansible,zhiwliu/openshift-ansible,liggitt/openshift-ansible,kwoodson/openshift-ansible,maxamillion/openshift-ansible,mmahut/openshift-ansible,mwoodson/openshift-ansible,miminar/openshift-ansible,aveshagarwal/openshift-ansible,ttindell2/openshift-ansible,tagliateller/openshift-ansible,nak3/openshift-ansible,anpingli/openshift-ansible,sdodson/openshift-ansible,sosiouxme/openshift-ansible,ewolinetz/openshift-ansible,EricMountain-1A/openshift-ansible,ewolinetz/openshift-ansible,ttindell2/openshift-ansible,brenton/openshift-ansible,openshift/openshift-ansible,brenton/openshift-ansible,openshift/openshift-ansible,akubicharm/openshift-ansible,detiber/openshift-ansible,tagliateller/openshift-ansible,gburges/openshift-ansible,ttindell2/openshift-ansible,jwhonce/openshift-ansible,sosiouxme/openshift-ansible,rhdedgar/openshift-ansible,ttindell2/openshift-ansible,tagliateller/openshift-ansible,ewolinetz/openshift-ansible,maxamillion/openshift-ansible,nhr/openshift-ansible,thoraxe/openshift-ansible,DG-i/openshift-ansible,akubicharm/openshift-ansible,tagliateller/openshift-ansible,thoraxe/openshift-ansible,sdodson/openshift-ansible,jwhonce/openshift-ansible,EricMountain-1A/openshift-ansible,zhiwliu/openshift-ansible,bparees/openshift-ansible,DG-i/openshift-ansible,abutcher/openshift-ansible,twiest/openshift-ansible,liggitt/openshift-ansible,detiber/openshift-ansible,rjhowe/openshift-ansible,abutcher/openshift-ansible,anpingli/openshift-ansible,sdodson/openshift-ansible,wbrefvem/openshift-ansible,twiest/openshift-ansible,kwoodson/openshift-ansible,mwoodson/openshift-ansible,mmahut/openshift-ansible,liggitt/openshift-ansible,sosiouxme/openshift-ansible,DG-i/openshift-ansible,abutcher/openshift-ansible,liggitt/openshift-ansible,thoraxe/openshift-ansible,twiest/openshift-ansible,nhr/openshift-ansible,miminar/openshift-ansible,wbrefvem/openshift-ansible,sosiouxme/openshift-ansible,git001/openshift-ansible,nhr/openshift-ansible,jwhonce/openshift-ansible,akubicharm/openshift-ansible,EricMountain-1A/openshift-ansible,tagliateller/openshift-ansible,markllama/openshift-ansible,rhdedgar/openshift-ansible,aveshagarwal/openshift-ansible,akubicharm/openshift-ansible,twiest/openshift-ansible,mmahut/openshift-ansible,aveshagarwal/openshift-ansible,akubicharm/openshift-ansible,detiber/openshift-ansible,sdodson/openshift-ansible,sdodson/openshift-ansible,ewolinetz/openshift-ansible,miminar/openshift-ansible,wbrefvem/openshift-ansible,zhiwliu/openshift-ansible,abutcher/openshift-ansible,git001/openshift-ansible,DG-i/openshift-ansible,markllama/openshift-ansible,maxamillion/openshift-ansible,aveshagarwal/openshift-ansible,miminar/openshift-ansible,markllama/openshift-ansible,ewolinetz/openshift-ansible,markllama/openshift-ansible,wbrefvem/openshift-ansible,detiber/openshift-ansible,thoraxe/openshift-ansible