Only stop n-cpu in stop_nova_compute
Only stop n-cpu in stop_nova_compute

Move screen_stop n-cpu from stop_nova_rest to stop_nova_compute.

Change-Id: I672673a55869d3f68e12c476924fc742e8260f39

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