[Debian-on-mobile-maintainers] Bug#1051139: fix doas for sxmo

[Philip J Freeman]

I'm working on a fix for this bug here:

https://salsa.debian.org/DebianOnMobile-team/sxmo-utils/-/merge_requests/2

I'm not sure I like installing Sxmo's doas.conf as /etc/doas.conf.
Looking into alternatives, but it seems that Debian's doas doesn't
support a doas.d/ directory, as pointed out by Jochen Sprickerhof.

This patch (as submitted in the MR on salsa) is currently working for me
on my pinephonepro.