Fixes a bug in attaching volumes on Hyper-V
Fixes a bug in attaching volumes on Hyper-V

Fixes bug: #1122264

The CIM v2 WMI context needs to be instantiated by the BaseVolumeUtils
class and not passed by the caller of get_iscsi_initiator().

Change-Id: I811b5bd0117b0035c18e5c90169b25a095bc54e9

JianyuWang/nova,phenoxim/nova,takeshineshiro/nova,eayunstack/nova,jianghuaw/nova,BeyondTheClouds/nova,CiscoSystems/nova,openstack/nova,cloudbau/nova,whitepages/nova,zhimin711/nova,gooddata/openstack-nova,gspilio/nova,sridevikoushik31/openstack,phenoxim/nova,LoHChina/nova,zaina/nova,dims/nova,JioCloud/nova,cernops/nova,yrobla/nova,TieWei/nova,blueboxgroup/nova,Brocade-OpenSource/OpenStack-DNRM-Nova,isyippee/nova,sridevikoushik31/openstack,watonyweng/nova,saleemjaveds/https-github.com-openstack-nova,CCI-MOC/nova,apporc/nova,Yusuke1987/openstack_template,dawnpower/nova,DirectXMan12/nova-hacking,joker946/nova,raildo/nova,SUSE-Cloud/nova,gspilio/nova,mikalstill/nova,rajalokan/nova,edulramirez/nova,jeffrey4l/nova,yatinkumbhare/openstack-nova,zzicewind/nova,vmturbo/nova,felixma/nova,edulramirez/nova,cernops/nova,mgagne/nova,iuliat/nova,cloudbase/nova,leilihh/nova,noironetworks/nova,iuliat/nova,affo/nova,fnordahl/nova,sacharya/nova,dims/nova,maelnor/nova,cloudbau/nova,maheshp/novatest,gooddata/openstack-nova,jianghuaw/nova,petrutlucian94/nova_dev,orbitfp7/nova,devoid/nova,akash1808/nova_test_latest,Francis-Liu/animated-broccoli,bgxavier/nova,rahulunair/nova,thomasem/nova,mandeepdhami/nova,mmnelemane/nova,rahulunair/nova,akash1808/nova,luogangyi/bcec-nova,CCI-MOC/nova,projectcalico/calico-nova,silenceli/nova,akash1808/nova_test_latest,citrix-openstack-build/nova,shootstar/novatest,belmiromoreira/nova,petrutlucian94/nova_dev,jeffrey4l/nova,tangfeixiong/nova,apporc/nova,joker946/nova,cyx1231st/nova,CEG-FYP-OpenStack/scheduler,mgagne/nova,rajalokan/nova,dstroppa/openstack-smartos-nova-grizzly,sacharya/nova,orbitfp7/nova,CEG-FYP-OpenStack/scheduler,alaski/nova,mmnelemane/nova,yrobla/nova,fnordahl/nova,kimjaejoong/nova,gspilio/nova,OpenAcademy-OpenStack/nova-scheduler,angdraug/nova,MountainWei/nova,eharney/nova,ruslanloman/nova,Juniper/nova,maheshp/novatest,rrader/nova-docker-plugin,dstroppa/openstack-smartos-nova-grizzly,LoHChina/nova,eonpatapon/nova,ntt-sic/nova,rickerc/nova_audit,ntt-sic/nova,Stavitsky/nova,sridevikoushik31/nova,shail2810/nova,bclau/nova,belmiromoreira/nova,adelina-t/nova,zaina/nova,Yuriy-Leonov/nova,SUSE-Cloud/nova,tealover/nova,yosshy/nova,Stavitsky/nova,devoid/nova,zhimin711/nova,eayunstack/nova,felixma/nova,BeyondTheClouds/nova,BeyondTheClouds/nova,maheshp/novatest,alexandrucoman/vbox-nova-driver,noironetworks/nova,OpenAcademy-OpenStack/nova-scheduler,Triv90/Nova,petrutlucian94/nova,openstack/nova,vmturbo/nova,plumgrid/plumgrid-nova,vmturbo/nova,redhat-openstack/nova,blueboxgroup/nova,cernops/nova,JioCloud/nova_test_latest,sebrandon1/nova,sridevikoushik31/nova,saleemjaveds/https-github.com-openstack-nova,zzicewind/nova,bigswitch/nova,maelnor/nova,spring-week-topos/nova-week,vmturbo/nova,klmitch/nova,mikalstill/nova,gooddata/openstack-nova,cloudbase/nova,virtualopensystems/nova,leilihh/nova,nikesh-mahalka/nova,tianweizhang/nova,vladikr/nova_drafts,barnsnake351/nova,thomasem/nova,mikalstill/nova,mandeepdhami/nova,TieWei/nova,Juniper/nova,mahak/nova,barnsnake351/nova,tangfeixiong/nova,Yuriy-Leonov/nova,CloudServer/nova,double12gzh/nova,kimjaejoong/nova,scripnichenko/nova,sridevikoushik31/openstack,DirectXMan12/nova-hacking,mahak/nova,TwinkleChawla/nova,redhat-openstack/nova,j-carpentier/nova,virtualopensystems/nova,gooddata/openstack-nova,akash1808/nova,rickerc/nova_audit,tanglei528/nova,double12gzh/nova,qwefi/nova,Francis-Liu/animated-broccoli,tealover/nova,ted-gould/nova,viggates/nova,raildo/nova,Metaswitch/calico-nova,rajalokan/nova,affo/nova,shahar-stratoscale/nova,viggates/nova,devendermishrajio/nova_test_latest,adelina-t/nova,bgxavier/nova,sridevikoushik31/nova,devendermishrajio/nova,eonpatapon/nova,dawnpower/nova,qwefi/nova,luogangyi/bcec-nova,yatinkumbhare/openstack-nova,jianghuaw/nova,cyx1231st/nova,bigswitch/nova,imsplitbit/nova,nikesh-mahalka/nova,NeCTAR-RC/nova,JioCloud/nova,Tehsmash/nova,alaski/nova,yosshy/nova,ted-gould/nova,klmitch/nova,eharney/nova,sebrandon1/nova,MountainWei/nova,ewindisch/nova,JioCloud/nova_test_latest,ewindisch/nova,vladikr/nova_drafts,plumgrid/plumgrid-nova,CiscoSystems/nova,shahar-stratoscale/nova,alvarolopez/nova,petrutlucian94/nova,klmitch/nova,citrix-openstack-build/nova,Juniper/nova,Tehsmash/nova,takeshineshiro/nova,Triv90/Nova,cloudbase/nova-virtualbox,Juniper/nova,Brocade-OpenSource/OpenStack-DNRM-Nova,tianweizhang/nova,projectcalico/calico-nova,shail2810/nova,dstroppa/openstack-smartos-nova-grizzly,leilihh/novaha,j-carpentier/nova,silenceli/nova,Triv90/Nova,sebrandon1/nova,spring-week-topos/nova-week,cloudbase/nova,whitepages/nova,sridevikoushik31/nova,CloudServer/nova,yrobla/nova,shootstar/novatest,Yusuke1987/openstack_template,varunarya10/nova_test_latest,cloudbase/nova-virtualbox,jianghuaw/nova,klmitch/nova,devendermishrajio/nova_test_latest,badock/nova,Metaswitch/calico-nova,imsplitbit/nova,badock/nova,isyippee/nova,DirectXMan12/nova-hacking,rajalokan/nova,berrange/nova,JianyuWang/nova,tudorvio/nova,scripnichenko/nova,alexandrucoman/vbox-nova-driver,va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