common/mlx5: extend virtq modifiable fields

common/mlx5: extend virtq modifiable fields

A virtq configuration can be modified after the virtq creation.
Added the following modifiable fields:
1.address fields: desc_addr/used_addr/available_addr
2.hw_available_index
3.hw_used_index
4.virtio_q_type
5.version type
6.queue mkey
7.feature bit mask: tso_ipv4/tso_ipv6/tx_csum/rx_csum
8.event mode: event_mode/event_qpn_or_msix

Signed-off-by: Li Zhang <lizh@nvidia.com>
Acked-by: Matan Azrad <matan@nvidia.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>