maintainers: resign from virtio and vhost
maintainers: resign from virtio and vhost

I'm resigning from DPDK virtio and vhost maintainer as I'm leaving Intel.

Sincerely thank Maxime, Chenbo and the community for all the support.

Signed-off-by: Zhihong Wang <efad9c89b3a8db7900a2572fdee08ebbff3cfc6b@intel.com>
Acked-by: Maxime Coquelin <9a2667dee3b90866bbc9c2696cff2b7d5616c95a@redhat.com>

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