Damien Zammit authored Nov 10, 2018 and Adam Jackson committed Jul 11, 2019

This new module uses Hurd's RPCs for accessing the PCI configuration space.
Direct access as in {read_write}_{8,16,32} functions is done by the old x86
module.

Some x86 function prototypes are now declared in a new header for the Hurd
module to use them, in order to duplicate as little code as possible.

Author:  Joan Lledó <joanlluislledo@gmail.com>
Also-by: Damien Zammit <damien@zamaudio.com>
Signed-off-by: Damien Zammit <damien@zamaudio.com>