The driver should not forward LLDP type frames.  Inspect the ether type and
do not send if it is an LLDP ethertype frame.
Signed-off-by: NGreg Rose <gregory.v.rose@intel.com>
Tested-by: NSibai Li <sibai.li@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>