Use the same size for device and volume
Use the same size for device and volume

By using the same size we skip the resize step, which might be
problematic on the probabilistic error device.

Signed-off-by: Bartosz Rybacki <fef32303793950060c48ae6e929565cf13c1141e@redhat.com>

kubevirt/kubevirt,kubevirt/kubevirt,kubevirt/kubevirt,kubevirt/kubevirt