lib/ironic: Do not check for database or message queue
lib/ironic: Do not check for database or message queue

Only check for OpenStack services, not specific database or
messaging backends.

Change-Id: I7960718defa3f521d1c2128d8523e8ee9328da64

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