net/virtio: fix Rx stats on AltiVec path
net/virtio: fix Rx stats on AltiVec path

With vectorized functions, only the rx stats for number of packets is
incremented.
Update also the other statistics.

Fixes: 52b5a707e6ca ("net/virtio: add Altivec Rx")

Signed-off-by: David Christensen <9a876b0e626a7e524926f129e2e0ea9c4c104ff4@linux.vnet.ibm.com>
Reviewed-by: Maxime Coquelin <9a2667dee3b90866bbc9c2696cff2b7d5616c95a@redhat.com>

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