Fix image create functions for Ironic
Fix image create functions for Ironic

This fixes an issue where --container-format was not passed to
'openstack image create'.

Change-Id: If1431c8dc8ff8e940f99e984939f5b2732bb0ee0
Closes-Bug: 1357495

avvocatodemarchis/devstack,LoHChina/devstack,thomasem/devstack,eshnil2000/devstack,neerja28/Devstack_GlusterFS,mssumanth/devstack,neerja28/Devstack_GlusterFS,noironetworks/devstack,upadhyay-prashant/devstack,ozamiatin/devstack,dirkmueller/devstack,mc2014/devstack,virtualopensystems/devstack,sequenceiq/devstack,TwinkleChawla/devstack,bigswitch/devstack,upadhyay-prashant/devstack,andrewrothstein/devstack,mssumanth/devstack,pacinete/devstack,prithivm/branch01,vishnugonela/devstack,openstack-dev/devstack,parul24/devstack,Mahito/devstack,dtroyer/devstack,eharney/devstack,olivierlemasle/devstack,affo/devstack,tianweizhang/devstack,HPCHub/devstack,varunarya10/devstack,bljgaurav/openstack-test,Mahito/devstack,NaokiMiyata/devstack,group-policy/devstack,pczerkas/devstack,avvocatodemarchis/devstack,mmasaki/devstack,nuxeh/devstack,wenhuizhang/devstack,liuquansheng47/devstack,mmasaki/devstack,HPCHub/devstack,nuxeh/devstack,pombredanne/devstack,bswartz/devstack,sequenceiq/devstack,bljgaurav/openstack-test,wenhuizhang/devstack,LoHChina/devstack,eharney/devstack,CloudServer/devstack,vsham20/devstack,pacinete/devstack,richliu/devstack,flavio-fernandes/devstack,nawawi/openstack,BSJAIN92/OpenStack,andrewrothstein/devstack,mc2014/devstack,vishnugonela/devstack,bq-xiao/devstack,atulpatil301/devstack,dtroyer/devstack,affo/devstack,nawawi/openstack,TwinkleChawla/devstack,thomasem/devstack,j4/devstack,CloudServer/devstack,pombredanne/devstack,kplus/devstack-moonshot,promptworks/devstack,rushiagr/devstack,openstack-dev/devstack,group-policy/devstack,atulpatil301/devstack,j4/devstack,tianweizhang/devstack,ozamiatin/devstack,liuquansheng47/devstack,rushiagr/devstack,olivierlemasle/devstack,herrsechs/devstack,NaokiMiyata/devstack,costingalan/devstack,flavio-fernandes/devstack,dirkmueller/devstack,parul24/devstack,BSJAIN92/OpenStack,varunarya10/devstack,bq-xiao/devstack,bswartz/devstack,pczerkas/devstack,noironetworks/devstack,richliu/devstack,prithivm/branch01,sc68cal/devstack,costingalan/devstack,kplus/devstack-moonshot,samgoon/devstack,samgoon/devstack,herrsechs/devstack,sc68cal/devstack,vsham20/devstack,promptworks/devstack,bigswitch/devstack