[RESEND PATCH 0/4] Improve RaspBerry Pi 5 support part1: Fixes

[Torsten Duwe]

Hi all,

here is the requested resend of the first mini-series with the fixes,
now hopefully with all interested people involved. I regenerated it
using get_maintainer.pl on part1 and part2, for the heads-up.
I also added Oleksii's refreshed review tag.

Part2 takes actually longer to rework than expected; documentation on the
PCIe bridges is not so opulent, mildly speaking.

This set should apply cleanly on 2025.10 and on master [1c250e444ad].

	Torsten