Fix how onos-gen-partitions script looks up optional node ips in CLI
Fix how onos-gen-partitions script looks up optional node ips in CLI

Change-Id: Id62583755bc02ef20a87fcf7e394f725cef153ed

oplinkoms/onos,Shashikanth-Huawei/bmp,donNewtonAlpha/onos,Shashikanth-Huawei/bmp,sdnwiselab/onos,mengmoya/onos,y-higuchi/onos,y-higuchi/onos,gkatsikas/onos,oplinkoms/onos,osinstom/onos,donNewtonAlpha/onos,LorenzReinhart/ONOSnew,maheshraju-Huawei/actn,VinodKumarS-Huawei/ietf96yang,oplinkoms/onos,opennetworkinglab/onos,opennetworkinglab/onos,oplinkoms/onos,donNewtonAlpha/onos,Shashikanth-Huawei/bmp,kuujo/onos,osinstom/onos,osinstom/onos,mengmoya/onos,sdnwiselab/onos,kuujo/onos,gkatsikas/onos,lsinfo3/onos,Shashikanth-Huawei/bmp,oplinkoms/onos,LorenzReinhart/ONOSnew,kuujo/onos,maheshraju-Huawei/actn,kuujo/onos,mengmoya/onos,gkatsikas/onos,mengmoya/onos,VinodKumarS-Huawei/ietf96yang,opennetworkinglab/onos,LorenzReinhart/ONOSnew,donNewtonAlpha/onos,VinodKumarS-Huawei/ietf96yang,lsinfo3/onos,Shashikanth-Huawei/bmp,VinodKumarS-Huawei/ietf96yang,lsinfo3/onos,oplinkoms/onos,maheshraju-Huawei/actn,maheshraju-Huawei/actn,opennetworkinglab/onos,gkatsikas/onos,maheshraju-Huawei/actn,kuujo/onos,opennetworkinglab/onos,LorenzReinhart/ONOSnew,gkatsikas/onos,gkatsikas/onos,donNewtonAlpha/onos,sdnwiselab/onos,y-higuchi/onos,lsinfo3/onos,osinstom/onos,mengmoya/onos,y-higuchi/onos,y-higuchi/onos,oplinkoms/onos,osinstom/onos,LorenzReinhart/ONOSnew,sdnwiselab/onos,kuujo/onos,sdnwiselab/onos,kuujo/onos,VinodKumarS-Huawei/ietf96yang,opennetworkinglab/onos,sdnwiselab/onos