Set local_ip only when TENANT_TUNNELS are enabled
Set local_ip only when TENANT_TUNNELS are enabled

In an installation with VLAN tenant networks, devstack should
not configure the local_ip (which is applicable only when
tenant_tunnels are used). This is causing failures in Neutron
for an IPv6 only setup. This patch addresses this issue, but
configuring the local_ip only when TENANT_TUNNELS are enabled.

Related-Bug: #1447693
Change-Id: I0e2a2d8b6ce0ad87f6c0d318ac522dbab50d44ee

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