Update ssh known hosts and tftp
Update ssh known hosts and tftp

This is also required to get install going.

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