net/virtio-user: fix net status report
net/virtio-user: fix net status report

We only enabled LSC when using vhost-user as the backend, but it is
reported even when using vhost-kernel as the backend.

Fix it by only reportting LSC support when using vhost-user as the
backend.

Fixes: 35c4f8554833 ("net/virtio-user: support to report net status")

Signed-off-by: Jianfeng Tan <4339d9ba3a87a0d192e405945005ff86667f7b0c@intel.com>

john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk