Fix an silly error by auto-complete while managing the merge conflicts.
It's the eth_dev_data (but not eth_dev) entry should be memset.
Fixes: d948f596fee2 ("ethdev: fix port data mismatched in multiple process model")
Reported-by: Ferruh Yigit <ferruh.yigit@intel.com>
Signed-off-by: Yuanhan Liu <yuanhan.liu@linux.intel.com>