Fix savanna-dashboard git repo clone dest
Fix savanna-dashboard git repo clone dest

It breaks savanna d-g jobs due to the ERROR_ON_CLONE=True in d-g
(enforce that nothing will be cloned during the installation).

Change-Id: I0531e1baf7252c31eb63ee5b46c28d1dfa7d0a1b

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