systemd: Fix systemd when used with busybox less

systemd: Fix systemd when used with busybox less

Per default systemd use a pager for the output of most of its tools
and it expect this pager to be color capable. But that is not the case
when the busybox `less` is used, which lead to output garbled by color
escape sequences.

To fix this issue add a profile frament that disable the systemd pager
when busybox `less` is detected.

Signed-off-by: Alban Bedel <alban.bedel@aerq.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
(cherry picked from commit de7e36a7858ebca4615975967fcad1c399eacdb0)
Signed-off-by: Jermain Horsman <jermain.horsman@nedap.com>
Signed-off-by: Steve Sakoman <steve@sakoman.com>