network, netstat, test: Fix pod-cache stub
network, netstat, test: Fix pod-cache stub

The cache stub was returning only the interface name and not the whole
cached data.

Signed-off-by: Edward Haas <416ab6a6c3e37a8cab0d365516e79cce8f9be5ad@redhat.com>

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