Provide integer number to arping "-w" parameter
Provide integer number to arping "-w" parameter

Some arping versions only accept an integer number for the
"deadline" (-w) parameter.

Change-Id: Icf5e2a73b15407419d5c922e236181af85aad0dc
Closes-Bug: #1885169

openstack/neutron,mahak/neutron,mahak/neutron,mahak/neutron,openstack/neutron,openstack/neutron