dhcp-done: send status to notify netboot service

This enables the daemon for sending boot status so that netboot service
can take actions accordingly.

Tested with nc and verified that the data byte is present.

Change-Id: I570bbd7c05028b6c007ff9d5a00a8589da73a8ff
Signed-off-by: Yuxiao Zhang <yuxiaozhang@google.com>
3 files changed