Provide a script to user to trigger system shutdown request
in service VM or user VM.
System shutdown logic have been integrated in the lifecycle
manager, only need to send system shutdown request command
through unix domain socket in this script.
v3-->v4:
Rewirte system shutdown trigger script using python
since phython script have better portability.
v4-->v5:
Update command name and copyright header.
Tracked-On: #6652
Signed-off-by: Xiangyang Wu <xiangyang.wu@intel.com>
Reviewed-by: fei1.li@intel.com
Xiangyang Wu