Ensure that keystone uses global debug setting
Ensure that keystone uses global debug setting

When setting ENABLE_DEBUG_LOG_LEVEL the keystone screen would ignore
this setting and always use the debug mode.

Change-Id: I934443c2976e936198fc93da4cca717e6cb84e6f

vishnugonela/devstack,j4/devstack,openstack-dev/devstack,openstack-dev/devstack,kplus/devstack-moonshot,group-policy/devstack,group-policy/devstack,varunarya10/devstack,thomasem/devstack,atulpatil301/devstack,sequenceiq/devstack,ozamiatin/devstack,TwinkleChawla/devstack,upadhyay-prashant/devstack,prithivm/branch01,nuxeh/devstack,j4/devstack,atulpatil301/devstack,wenhuizhang/devstack,kplus/devstack-moonshot,olivierlemasle/devstack,Mahito/devstack,BSJAIN92/OpenStack,vsham20/devstack,mmasaki/devstack,Mahito/devstack,liuquansheng47/devstack,noironetworks/devstack,bswartz/devstack,flavio-fernandes/devstack,mssumanth/devstack,affo/devstack,richliu/devstack,thomasem/devstack,pczerkas/devstack,avvocatodemarchis/devstack,herrsechs/devstack,promptworks/devstack,pacinete/devstack,bljgaurav/openstack-test,tianweizhang/devstack,NaokiMiyata/devstack,TwinkleChawla/devstack,costingalan/devstack,dtroyer/devstack,dirkmueller/devstack,dirkmueller/devstack,andrewrothstein/devstack,avvocatodemarchis/devstack,noironetworks/devstack,promptworks/devstack,sc68cal/devstack,bigswitch/devstack,pombredanne/devstack,eharney/devstack,LoHChina/devstack,costingalan/devstack,sc68cal/devstack,bq-xiao/devstack,BSJAIN92/OpenStack,nawawi/openstack,olivierlemasle/devstack,samgoon/devstack,virtualopensystems/devstack,prithivm/branch01,parul24/devstack,CloudServer/devstack,NaokiMiyata/devstack,mc2014/devstack,neerja28/Devstack_GlusterFS,neerja28/Devstack_GlusterFS,herrsechs/devstack,bigswitch/devstack,upadhyay-prashant/devstack,pacinete/devstack,samgoon/devstack,andrewrothstein/devstack,nawawi/openstack,bljgaurav/openstack-test,bq-xiao/devstack,vsham20/devstack,tianweizhang/devstack,HPCHub/devstack,parul24/devstack,varunarya10/devstack,eharney/devstack,pczerkas/devstack,rushiagr/devstack,ozamiatin/devstack,richliu/devstack,bswartz/devstack,dtroyer/devstack,CloudServer/devstack,mssumanth/devstack,rushiagr/devstack,sequenceiq/devstack,mc2014/devstack,flavio-fernandes/devstack,liuquansheng47/devstack,nuxeh/devstack,vishnugonela/devstack,wenhuizhang/devstack,eshnil2000/devstack,mmasaki/devstack,pombredanne/devstack,affo/devstack,HPCHub/devstack,LoHChina/devstack