Only use ports with non empy list of fixed_ips
Only use ports with non empy list of fixed_ips

A port is not necessarily attached to a subnet and therefor can have no fixed
IPs. We skip such ports to avoid a Traceback and FIP association failure.

Change-Id: I01fb1a53b0423018581f2240a004c7bb26576ec0
Closes-Bug: #1471277

takeshineshiro/horizon,Mirantis/mos-horizon,endorphinl/horizon,Tesora/tesora-horizon,ChameleonCloud/horizon,davidcusatis/horizon,openstack/horizon,watonyweng/horizon,doug-fish/horizon,idjaw/horizon,django-leonardo/horizon,vladryk/horizon,anthonydillon/horizon,coreycb/horizon,NeCTAR-RC/horizon,Mirantis/mos-horizon,damien-dg/horizon,watonyweng/horizon,ChameleonCloud/horizon,dan1/horizon-x509,xinwu/horizon,dan1/horizon-x509,NeCTAR-RC/horizon,sandvine/horizon,takeshineshiro/horizon,davidcusatis/horizon,maestro-hybrid-cloud/horizon,FNST-OpenStack/horizon,Tesora/tesora-horizon,saydulk/horizon,xinwu/horizon,ChameleonCloud/horizon,wolverineav/horizon,endorphinl/horizon-fork,doug-fish/horizon,endorphinl/horizon,anthonydillon/horizon,xinwu/horizon,maestro-hybrid-cloud/horizon,redhat-openstack/horizon,henaras/horizon,tqtran7/horizon,philoniare/horizon,endorphinl/horizon-fork,noironetworks/horizon,endorphinl/horizon,doug-fish/horizon,wolverineav/horizon,karthik-suresh/horizon,anthonydillon/horizon,davidcusatis/horizon,bac/horizon,henaras/horizon,ChameleonCloud/horizon,Dark-Hacker/horizon,BiznetGIO/horizon,NeCTAR-RC/horizon,karthik-suresh/horizon,dan1/horizon-proto,django-leonardo/horizon,wolverineav/horizon,redhat-cip/horizon,mdavid/horizon,idjaw/horizon,sandvine/horizon,sandvine/horizon,dan1/horizon-proto,Dark-Hacker/horizon,saydulk/horizon,karthik-suresh/horizon,gerrive/horizon,maestro-hybrid-cloud/horizon,idjaw/horizon,noironetworks/horizon,BiznetGIO/horizon,xinwu/horizon,gerrive/horizon,bigswitch/horizon,NeCTAR-RC/horizon,Tesora/tesora-horizon,watonyweng/horizon,redhat-cip/horizon,tqtran7/horizon,django-leonardo/horizon,henaras/horizon,sandvine/horizon,yeming233/horizon,henaras/horizon,Mirantis/mos-horizon,FNST-OpenStack/horizon,BiznetGIO/horizon,Tesora/tesora-horizon,Mirantis/mos-horizon,coreycb/horizon,mdavid/horizon,mdavid/horizon,bigswitch/horizon,coreycb/horizon,FNST-OpenStack/horizon,dan1/horizon-x509,damien-dg/horizon,coreycb/horizon,django-leonardo/horizon,noironetworks/horizon,yeming233/horizon,openstack/horizon,bac/horizon,vladryk/horizon,openstack/horizon,redhat-cip/horizon,maestro-hybrid-cloud/horizon,endorphinl/horizon,takeshineshiro/horizon,mdavid/horizon,gerrive/horizon,damien-dg/horizon,doug-fish/horizon,redhat-openstack/horizon,Dark-Hacker/horizon,redhat-cip/horizon,Dark-Hacker/horizon,dan1/horizon-x509,bigswitch/horizon,FNST-OpenStack/horizon,anthonydillon/horizon,saydulk/horizon,vladryk/horizon,davidcusatis/horizon,endorphinl/horizon-fork,gerrive/horizon,philoniare/horizon,tqtran7/horizon,bac/horizon,bigswitch/horizon,BiznetGIO/horizon,vladryk/horizon,redhat-openstack/horizon,philoniare/horizon,tqtran7/horizon,openstack/horizon,endorphinl/horizon-fork,wolverineav/horizon,redhat-openstack/horizon,takeshineshiro/horizon,damien-dg/horizon,bac/horizon,yeming233/horizon,yeming233/horizon,karthik-suresh/horizon,dan1/horizon-proto,watonyweng/horizon,idjaw/horizon,noironetworks/horizon,saydulk/horizon,philoniare/horizon,dan1/horizon-proto