Fix discovery of old SMM firmware
Fix discovery of old SMM firmware

Older SMM firmware will not have neighbor data, ignore and move on
in such a case.

xcat2/confluent,xcat2/confluent,whowutwut/confluent,jjohnson42/confluent,xcat2/confluent,jjohnson42/confluent,whowutwut/confluent,jjohnson42/confluent,xcat2/confluent,whowutwut/confluent,whowutwut/confluent,jjohnson42/confluent,xcat2/confluent,jjohnson42/confluent