This matches the scheme used by other target packages and will avoid
confusion with any future version.
Signed-off-by: Andre Heider <a.heider@gmail.com>
Backport HANDSHAKE and TRAINING notification from ltq-vdsl-app. It
unifies the dsl led blinking pattern accross all subtargets and allows
to get the current line status from the dsl led.
Signed-off-by: Mathias Kresin <dev@kresin.me>