Fix cinder volume type creation and rename variable
Fix cinder volume type creation and rename variable

Commit 7062b12b9b91a1eb405d7079c62b62b0de59109f introduced
a bug where the default_volume_type is set to 'lvm' but
that is not the volume-type that's actually created, that
is 'lvmdriver-1' in gate runs, so we see a ton of
VolumeTypeNotFoundByName for the 'lvm' volume type in the
cinder-api logs.

This simply sets the default_volume_type to the volume
type that's created in the create_volume_types function.

Also renames the default_type variable to default_name to
be consistent with variable naming in the rest of the
cinder script.

Change-Id: Ib35ffc09f6582354010ac8ca35da581ea508877a
Closes-Bug: #1348786

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