The vdev eth_ring has been renamed to net_ring.
Some unit tests are using the old name and fail.
Fixes also the vdev comments in EAL and ethdev.
Fixes: 2f45703c17ac ("drivers: make driver names consistent")
Signed-off-by: Thomas Monjalon <thomas.monjalon@6wind.com>
Acked-by: Pablo de Lara <pablo.de.lara.guarch@intel.com>
5fc07e3eb7