Docker 1.2.0 and docker-py 0.6.0 support the device parameter when
starting containers(docker run --device[]).
Using --device you can add a host device to the container without the
--privileged flag.(e.g. --device=/dev/sdc:/dev/xvdc:rwm)
Note:":" is used to split the full device path.
Reference: (parse_devices function)
https://github.com/docker/docker-py/blob/master/docker/utils/utils.py#L259
Change-Id: I7735a8b769062f442cc8f1810dbdecdc6324509e
Closes-bug: #1434427
3c4ecc24c5