Wire in ConfKeyManager._generate_hex_key!
Wire in ConfKeyManager._generate_hex_key!

Rename _get_hex_key to _generate_hex_key so that this
key manager works with the super class it extends.

In making this change we also need to initialize the hex key
in the constructor before initializing the super class. Not
doing so causes test failures.

Fixes bug: 1224602

Change-Id: I9a6bd9bf96bf74a08e607af811ebbe9622b994f3

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