Hello!

Notes:
 - passing a zeroed out pci_sys_data for ARM looks ok, but I haven't
   tested it on ARM.
 - tested it on ARM64 fast model
 - Any information on how this can be tested on arm is welcome.

 I have tested it on SMDK5410, works OK. By the way, PCI generic is missing MSI support, i had to
add it. I can share the patch if interested, it's very small.

Tested-by: Pavel Fedin <redacted>

Kind regards,
Pavel Fedin
Expert Engineer
Samsung Electronics Research center Russia