firmware_class: Refer to Debian wiki page when logging missing firmware
If firmware loading fails due to a missing file, log a second error
message referring to our wiki page about firmware. This will explain
why some firmware is in non-free, or can't be packaged at all. Only
do this once per boot.
Do something similar in the radeon and amdgpu drivers, where we have
an early check to avoid failing at a point where we cannot display
anything.
Gbp-Pq: Topic debian
Gbp-Pq: Name firmware_class-refer-to-debian-wiki-firmware-page.patch