77ca077195
This build takes time and can fail due to lack of disk space. It got enabled when we changed overcloud_dib_build_host_images to true. Also fix bifrost overrides which was wrongly applied, we need to use dib.yml instead of bifrost.yml, like in kayobe-seed-base. Change-Id: I1edafbb41a26587a5ef794b3b9886fdf189a0a1a