bat: Add ceph test for creating a sized block device
bat: Add ceph test for creating a sized block device

After creating the new block device of a fixed size query the size back
and check it matches.

Signed-off-by: Rob Bradford <c49e1dc14cd52e2644816db47123896e0ac79025@intel.com>

kaccardi/ciao,01org/ciao,obedmr/ciao,obedmr/ciao,markdryan/ciao,markdryan/ciao,matthewrsj/ciao,erick0z/ciao,matthewrsj/ciao,rbradford/ciao,rbradford/ciao,erick0z/ciao,01org/ciao,mcastelino/ciao,wcwxyz/ciao,mrkz/ciao,tpepper/ciao,mrkz/ciao,ciao-project/ciao,tpepper/ciao,erick0z/ciao,kaccardi/ciao,mcastelino/ciao,mcastelino/ciao,obedmr/ciao,mrkz/ciao,matthewrsj/ciao,wcwxyz/ciao,ciao-project/ciao,tpepper/ciao,wcwxyz/ciao