This avoids the following error when logging in to a host that does
not have the tty command:
-sh: tty: not found
Reported-by: Cristian Ionescu-Idbohrn <cristian.ionescu-idbohrn@axis.com>
(From OE-Core rev: e77cdb761169e404556487ac650dc562000da406)
Signed-off-by: Peter Kjellerstedt <peter.kjellerstedt@axis.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>