net/virtio-user: fix port id type
net/virtio-user: fix port id type

virtio-user port_id range should be increased from 8 bits to 16 bits.

Fixes: f8244c6399d9 ("ethdev: increase port id range")
Cc: stable@dpdk.org

Signed-off-by: Zhiyong Yang <fbdb847fac8e5e50b588eb93d9ff9fd811b7568c@intel.com>
Reviewed-by: Maxime Coquelin <9a2667dee3b90866bbc9c2696cff2b7d5616c95a@redhat.com>

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