Restore anonymus import in iptables_test.go
Restore anonymus import in iptables_test.go

- Which is needed when running make (test in container)

Signed-off-by: Alessandro Boch <5bd2eb5b6f60921d9a2b9cb6a0a86bb947f3d361@docker.com>

thaJeztah/docker,nawawi/docker,moul/docker,thaJeztah/docker,nalind/docker,mahak/docker,mahak/docker,Ramzec/docker,yosifkit/docker,konstruktoid/docker-upstream,bearstech/moby,cpuguy83/docker,gnailuy/docker,konstruktoid/docker-upstream,konstruktoid/docker-upstream,paralin/docker,yosifkit/docker,gnailuy/docker,trebonian/docker,gnailuy/docker,Ramzec/docker,Mokolea/docker,jameszhan/docker,AkihiroSuda/docker,moby/moby,paralin/docker,jthelin/docker,yosifkit/docker,AkihiroSuda/docker,moby/moby,docker/docker,thaJeztah/docker,cpuguy83/docker,vdemeester/docker,AkihiroSuda/docker,moby/moby,cpuguy83/docker,nawawi/docker,bearstech/moby,moul/docker,paralin/docker,jameszhan/docker,gnailuy/docker,vdemeester/docker,Mokolea/docker,djs55/docker,moul/docker,mahak/docker,nalind/docker,jimjag/docker,trebonian/docker,cpuguy83/docker,mahak/docker,jimjag/docker,Ramzec/docker,konstruktoid/docker-upstream,flavio/docker,nalind/docker,nawawi/docker,docker/docker,bearstech/moby,jimjag/docker,djs55/docker,flavio/docker,jameszhan/docker,Ramzec/docker,moul/docker,thaJeztah/docker,jthelin/docker,flavio/docker,Mokolea/docker,nawawi/docker,docker/docker,AkihiroSuda/docker,trebonian/docker,trebonian/docker,moby/moby,vdemeester/docker,Mokolea/docker,bearstech/moby,djs55/docker,jimjag/docker,flavio/docker,paralin/docker,yosifkit/docker,nalind/docker