use cgroup-lite package
use cgroup-lite package

Instead of managing cgroup via /etc/fstab ourselves, let the
cgroup-lite package do it.

Change-Id: I3c4b8e6583bcf644f3840819bdad972c3b52f088

savi-dev/devstack,nati/devstack_public,NaokiMiyata/devstack,BSJAIN92/OpenStack,virtualopensystems/devstack,rushiagr/devstack,jamielennox/devstack,nttmcl/devstack_public,eharney/devstack,bq-xiao/devstack,BSJAIN92/OpenStack,herrsechs/devstack,parul24/devstack,pczerkas/devstack,dtroyer/devstack,JioCloud/devstack,sstrato/devstack,williamthegrey/devstack,flavio-fernandes/devstack,costingalan/devstack,pacinete/devstack,mmasaki/devstack,costingalan/devstack,srics/devstack,CloudServer/devstack,Mahito/devstack,openstack-dev/devstack,eshnil2000/devstack,upadhyay-prashant/devstack,vsham20/devstack,openstack-dev/devstack,vsham20/devstack,TwinkleChawla/devstack,andrewrothstein/devstack,r-mibu/devstack,wenhuizhang/devstack,pacinete/devstack,rushiagr/devstack,mssumanth/devstack,sc68cal/devstack,Juniper/devstack,olivierlemasle/devstack,prithivm/branch01,noironetworks/devstack,cloudbuilders/devstack,affo/devstack,dtroyer/devstack,kplus/devstack-moonshot,tianweizhang/devstack,olivierlemasle/devstack,CloudServer/devstack,pombredanne/devstack,ozamiatin/devstack,j4/devstack,yamt/devstack,thomasem/devstack,CiscoSystems/devstack,eharney/devstack,promptworks/devstack,innodee/openstackk,bigswitch/devstack,mssumanth/devstack,ewindisch/raspi-devstack,LoHChina/devstack,mc2014/devstack,samgoon/devstack,samgoon/devstack,armando-migliaccio/devstack,mc2014/devstack,herrsechs/devstack,prithivm/branch01,ewindisch/raspi-devstack,TwinkleChawla/devstack,upadhyay-prashant/devstack,kplus/devstack-moonshot,nuxeh/devstack,Mahito/devstack,inkerra/devstack,citrix-openstack-build/devstack,ykaneko/devstack,shootstar/devstacktest,atulpatil301/devstack,dirkmueller/devstack,ykaneko/devstack,promptworks/devstack,HPCHub/devstack,bljgaurav/openstack-test,ozamiatin/devstack,noironetworks/devstack,nati/devstack_public,wenhuizhang/devstack,bswartz/devstack,avvocatodemarchis/devstack,liuquansheng47/devstack,savi-dev/devstack,varunarya10/devstack,neerja28/Devstack_GlusterFS,bq-xiao/devstack,Millnert/contrail-devstack,Yuriy-Leonov/devstack,deepakselvaraj/devstack,dirkmueller/devstack,varunarya10/devstack,bswartz/devstack,nuxeh/devstack,atulpatil301/devstack,group-policy/devstack,bljgaurav/openstack-test,neerja28/Devstack_GlusterFS,sequenceiq/devstack,nttmcl/devstack_public,pczerkas/devstack,sc68cal/devstack,thomasem/devstack,r-mibu/devstack,vishnugonela/devstack,sequenceiq/devstack,cloudbuilders/devstack,nawawi/openstack,andrewrothstein/devstack,LoHChina/devstack,mmasaki/devstack,bigswitch/devstack,NaokiMiyata/devstack,avvocatodemarchis/devstack,citrix-openstack-build/devstack,group-policy/devstack,j4/devstack,HPCHub/devstack,vishnugonela/devstack,richliu/devstack,nawawi/openstack,affo/devstack,parul24/devstack,richliu/devstack,tianweizhang/devstack,liuquansheng47/devstack,pombredanne/devstack,flavio-fernandes/devstack