Update install.d/20-stty so that we try to start a getty on ttyS0 and ttyS1 when using systemd. Change-Id: Id5b605c74bf82855af0af4d0f95659cdd3a7b3a0
With ILO and other remote machine management cards, a serial console is actually useful. Change-Id: I86f74d9dae3821b4682df813c5b52a83a29a138a