Commit 74b7427c41 (linux: Make platform device probe less fragile)
effectively dropped busid detection for non-PCI devices, for example on
OMAP we have "ID_PATH=platform-omapdrm.0". For such devices busid will not
be set, making platform probes (and server mediated fd support) impossible.
Fix that by extending config_udev_odev_setup_attribs() logic to support
platform devices as well.
Signed-off-by: Ivaylo Dimitrov <ivo.g.dimitrov.75@gmail.com>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1761>
579eb31222