Add ip address helper for network and broadcast

Signed-off-by: Nick Wade <nwade@pivotallabs.com>
add manual networking setup to ubuntu

Signed-off-by: Nick Wade <nwade@pivotallabs.com>
use manual networking for vsphere
[#63767112]

Signed-off-by: Ben Smith <bsmith@pivotallabs.com>
Add gratuitious arping to ubuntu manual network setup

Signed-off-by: Ben Smith <bsmith@pivotallabs.com>