[coreboot] Primitive low-level header file changes

[Kyösti Mälkki]

Hi folks!

In order to (better) support other than X86 to have PCI support, headers
with primitive low-level accessors have been re-organised as follows:

For any MMIO access, <device/mmio.h>
  read8/16/32/64()
  write8/16/32/64()

For any PCI configurations, <device/pci_ops.h>
  pci_read_config8/16/32()
  pci_write_config8/16/32()
  pci_or_config8/16/32()
  pci_update_config8/16/32()

For X86 (or other) IO space, <arch/io.h>
  inb(),inw(),inl(),insb(),insw(),insl()
  outb(),outw(),outl(),outsb(),outsw(),outsl()

For PNP configuration (pre-ram), <device/pnp_ops.h>
  pnp_read_config(), pnp_write_config()
  pnp_set_XX(), pnp_read_XX()

My current advice is you don't need to include <device/pci_type.h> or
<device/pnp_type.h> explicitly.

Regards,
Kyösti