tests: Adding wait for VMI
tests: Adding wait for VMI

Launcher pod don't get ready without this patch and VMI will not be deleted in time.

Signed-off-by: L. Pivarc <20641f57cb8ae0a0c0cb8324c56aa3e53fb301f0@redhat.com>

stu-gott/kubevirt,kubevirt/kubevirt,kubevirt/kubevirt,kubevirt/kubevirt,stu-gott/kubevirt,davidvossel/kubevirt,kubevirt/kubevirt,davidvossel/kubevirt,stu-gott/kubevirt,stu-gott/kubevirt,davidvossel/kubevirt,davidvossel/kubevirt