test: fix uninitialized port configuration
test: fix uninitialized port configuration

test_pmd_ring_pair_create_attach() uses an uninitialized
struct rte_eth_conf object

Fixes: 51f567129c94 ("app/test: add pmd_ring")
Cc: stable@dpdk.org

Signed-off-by: Radu Nicolau <fa459cf59d47c122ba776e9a6f631c862bf44680@intel.com>
Acked-by: Bernard Iremonger <233eeff376ad0c06f66f06c5522ea3c4feb30d3b@intel.com>

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