Add qemu-img to dib functests
Add qemu-img to dib functests

Install qemu-img in dib functests as it is a requirement for many of the
dib output formats.

Change-Id: I92299b2f59aa8e7de8995a6294bf6c88bbd4cdc5

Tesora/tesora-project-config,noorul/os-project-config,anbangr/osci-project-config,dongwenjuan/project-config,coolsvap/project-config,citrix-openstack/project-config,coolsvap/project-config,openstack-infra/project-config,noorul/os-project-config,openstack-infra/project-config,anbangr/osci-project-config,citrix-openstack/project-config,Tesora/tesora-project-config,dongwenjuan/project-config