Update nat AMI Ids for v1.2.1 release
Update nat AMI Ids for v1.2.1 release

tinnightcap/nubis-stacks,tinnightcap/nubis-stacks,gozer/nubis-stacks,limed/nubis-stacks,Nubisproject/nubis-stacks,limed/nubis-stacks,gozer/nubis-stacks,Nubisproject/nubis-stacks