[Buildroot] [PATCH] package/systemd: update help links

[Peter Korsgaard]

>>>>> "James" == James Knight <james.d.knight at live.com> writes:

 > When browsing the help references for various systemd features, it was
 > observed that the `systemd-rfkill` link was dead (originally pointing to
 > `systemd-rfkill at .service.html`; now `systemd-rfkill.service.html`). This
 > commit corrects this link, as well as updates all other links to https
 > (since freedesktop.org now force redirects to https).

 > Signed-off-by: James Knight <james.d.knight at live.com>

Committed to 2023.02.x and 2022.02.x, thanks.

-- 
Bye, Peter Korsgaard