Update RestartPolicy of container
Update RestartPolicy of container

Add `--restart` flag for `update` command, so we can change restart
policy for a container no matter it's running or stopped.

Signed-off-by: Zhang Wei <14976e959b2860fb06a3c1edbdb1945a4e11b8b5@huawei.com>

ashfall/cli,Zebrilee/cli,allencloud/cli,redpanda/cli,dnephin/cli,thaJeztah/cli,gdevillele/cli,allencloud/cli,docker/cli,redpanda/cli,Zebrilee/cli,cpuguy83/cli,dnephin/cli,docker/cli,ashfall/cli,e11137/cli,cpuguy83/cli,riyazdf/cli,riyazdf/cli,e11137/cli,thaJeztah/cli