xf86_platform_devices[i].pdev may be NULL in cases we fail to parse the
busid in config_udev_odev_setup_attribs() (see also [1], [2]) such as
when udev does not give use ID_PATH. This in turn leads to
platform_find_pci_info() being not called and pdev being NULL.
[1]: https://gitlab.freedesktop.org/xorg/xserver/-/issues/993
[2]: https://gitlab.freedesktop.org/xorg/xserver/-/issues/1076
Reviewed-by: Zoltán Böszörményi <zboszor@gmail.com>
Signed-off-by: Povilas Kanapickas <povilas@radix.lt>