Add Ironic cleaning network
Add Ironic cleaning network

The cleaning network is where ramdisks will be booted during
the cleaning process. We want to ensure nodes are being properly
cleaned on tear down.

Change-Id: Ic38de10668c97648d073fdf9a3afc59712057849
Implements: bp/implement-cleaning-states

nawawi/openstack,noironetworks/devstack,mc2014/devstack,eharney/devstack,rushiagr/devstack,nawawi/openstack,pombredanne/devstack,bljgaurav/openstack-test,j4/devstack,pczerkas/devstack,costingalan/devstack,pacinete/devstack,dtroyer/devstack,thomasem/devstack,atulpatil301/devstack,neerja28/Devstack_GlusterFS,herrsechs/devstack,group-policy/devstack,BSJAIN92/OpenStack,liuquansheng47/devstack,atulpatil301/devstack,bswartz/devstack,sequenceiq/devstack,BSJAIN92/OpenStack,bq-xiao/devstack,LoHChina/devstack,parul24/devstack,CloudServer/devstack,samgoon/devstack,mc2014/devstack,wenhuizhang/devstack,parul24/devstack,vsham20/devstack,mssumanth/devstack,HPCHub/devstack,ozamiatin/devstack,wenhuizhang/devstack,LoHChina/devstack,varunarya10/devstack,samgoon/devstack,bswartz/devstack,rushiagr/devstack,TwinkleChawla/devstack,bq-xiao/devstack,richliu/devstack,NaokiMiyata/devstack,sequenceiq/devstack,andrewrothstein/devstack,flavio-fernandes/devstack,prithivm/branch01,dirkmueller/devstack,varunarya10/devstack,olivierlemasle/devstack,TwinkleChawla/devstack,dtroyer/devstack,CloudServer/devstack,herrsechs/devstack,pombredanne/devstack,Mahito/devstack,vishnugonela/devstack,prithivm/branch01,Mahito/devstack,HPCHub/devstack,vsham20/devstack,noironetworks/devstack,kplus/devstack-moonshot,mssumanth/devstack,vishnugonela/devstack,NaokiMiyata/devstack,costingalan/devstack,neerja28/Devstack_GlusterFS,pacinete/devstack,bigswitch/devstack,upadhyay-prashant/devstack,thomasem/devstack,eharney/devstack,mmasaki/devstack,openstack-dev/devstack,nuxeh/devstack,avvocatodemarchis/devstack,andrewrothstein/devstack,dirkmueller/devstack,j4/devstack,openstack-dev/devstack,kplus/devstack-moonshot,bljgaurav/openstack-test,richliu/devstack,pczerkas/devstack,olivierlemasle/devstack,group-policy/devstack,avvocatodemarchis/devstack,bigswitch/devstack,liuquansheng47/devstack,upadhyay-prashant/devstack,nuxeh/devstack,ozamiatin/devstack,mmasaki/devstack,flavio-fernandes/devstack