export blockIODevice
export blockIODevice

the struct blockIODevice is used in an exported struct but it is not itself exported rendering that type inaccessible to
outside projects

Signed-off-by: cdoern <77652b25f263828722dc49ac3aeb10415fcec408@redhat.com>

opencontainers/runc,opencontainers/runc,opencontainers/runc,opencontainers/runc