Adding back ppc64le and s390x for vmdk cloud images
    
    Since they had to be seperated, koji tried to generate two images of
    same name and it failed. We decided to revert it and check with pungi
    folks for a better solution.
    
    https://pagure.io/releng/failed-composes/issue/1372
    
    Revert "Removing ppc64le and s390x vmdk cloud images"
    
    This reverts commit 46b1711d1d5cac6776def85a8316c8a14f4adde2.
    
    Signed-off-by: Mohan Boddu <mboddu@bhujji.com>