Jenkinsfile: use overlay2 for Power and s390x as well
Jenkinsfile: use overlay2 for Power and s390x as well

Signed-off-by: Sebastiaan van Stijn <64b2b6d12bfe4baae7dad3d018f8cbf6b0e7a044@gone.nl>

ibuildthecloud/docker,moby/moby,SvenDowideit/docker,moby/moby,moby/moby,yosifkit/docker,nawawi/docker,thaJeztah/docker,jvanz/docker,bearstech/moby,flavio/docker,trebonian/docker,tmp6154/docker,kolyshkin/moby,jvanz/docker,thaJeztah/docker,kojiromike/docker,mahak/docker,AkihiroSuda/docker,gnailuy/docker,nawawi/docker,djs55/docker,nalind/docker,tmp6154/docker,konstruktoid/docker-upstream,trebonian/docker,trebonian/docker,AkihiroSuda/docker,ibuildthecloud/docker,mahak/docker,estesp/docker,Ramzec/docker,konstruktoid/docker-upstream,djs55/docker,yongtang/docker,Ramzec/docker,jameszhan/docker,vdemeester/docker,yongtang/docker,gnailuy/docker,gnailuy/docker,konstruktoid/docker-upstream,dims/docker,jthelin/docker,yosifkit/docker,konstruktoid/docker-upstream,justincormack/docker,paralin/docker,jthelin/docker,yosifkit/docker,Ramzec/docker,SvenDowideit/docker,AkihiroSuda/docker,moul/docker,vdemeester/docker,cpuguy83/docker,docker/docker,konstruktoid/docker-1,dims/docker,nalind/docker,jimjag/docker,jimjag/docker,jvanz/docker,mahak/docker,flavio/docker,pradipd/moby,moby/moby,flavio/docker,kojiromike/docker,cpuguy83/docker,mahak/docker,kojiromike/docker,nawawi/docker,justincormack/docker,vdemeester/docker,thaJeztah/docker,jimjag/docker,nalind/docker,paralin/docker,yongtang/docker,AkihiroSuda/docker,gnailuy/docker,Ramzec/docker,moul/docker,jameszhan/docker,kolyshkin/moby,cpuguy83/docker,ibuildthecloud/docker,jameszhan/docker,yosifkit/docker,ibuildthecloud/docker,bearstech/moby,Mokolea/docker,jimjag/docker,Mokolea/docker,konstruktoid/docker-1,paralin/docker,kolyshkin/moby,moul/docker,SvenDowideit/docker,bearstech/moby,tmp6154/docker,bearstech/moby,justincormack/docker,dims/docker,cpuguy83/docker,docker/docker,djs55/docker,paralin/docker,moul/docker,pradipd/moby,ibuildthecloud/docker,Mokolea/docker,docker/docker,thaJeztah/docker,estesp/docker,estesp/docker,trebonian/docker,nawawi/docker,Mokolea/docker,nalind/docker,flavio/docker,konstruktoid/docker-1,pradipd/moby