iavf driver reset the dev_info structure. This action will clear
the setting in core library. This patch fix that issue.
Fixes: 69dd4c3d0898 ("net/avf: enable queue and device")
Cc: stable@dpdk.org
Signed-off-by: Qiming Yang <qiming.yang@intel.com>
Reviewed-by: David Marchand <david.marchand@redhat.com>