[S] Change in coreboot[master]: x86: pci_io_cfg: Make constant unsigned to fix out of bounds shift

[Paul Menzel (Code Review)]

Attention is currently required from: Nico Huber, Paul Menzel.

Hello build bot (Jenkins), Nico Huber, Angel Pons, Werner Zeh,

I'd like you to reexamine a change. Please visit

https://review.coreboot.org/c/coreboot/+/51292

to look at the new patch set (#2).

Change subject: x86: pci_io_cfg: Make constant unsigned to fix out of bounds shift
......................................................................

x86: pci_io_cfg: Make constant unsigned to fix out of bounds shift

Fix the error below when building coreboot with `CONFIG_UBSAN=y`.

PCI: pci_scan_bus for bus 00
    shift out of bounds src/arch/x86/include/arch/pci_io_cfg.h:13:20
    ubsan: unrecoverable error.

TEST=emulation/qemu-i440fx with `CONFIG_UBSAN=y` stops later with
         [ERROR]  unaligned access src/lib/rmodule.c:152:27
     [EMERG]  ubsan: unrecoverable error.
Change-Id: Ib05d225ab9f22078d765009b4ee6ef0c63231eed
Found-by: UBSAN
Signed-off-by: Paul Menzel 
---
M src/arch/x86/include/arch/pci_io_cfg.h
1 file changed, 21 insertions(+), 1 deletion(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/92/51292/2