Change in coreboot[master]: device: Add pciexp_find_next_extended_cap function

[Tim Wawrzynczak (Code Review)]

Attention is currently required from: Francois Toguo Fotso, Tim Wawrzynczak, Karthik Ramasubramanian.
Hello build bot (Jenkins), Francois Toguo Fotso, Furquan Shaikh, Paul Menzel, Nick Vaccaro,

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

https://review.coreboot.org/c/coreboot/+/57784

to look at the new patch set (#3).

Change subject: device: Add pciexp_find_next_extended_cap function
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device: Add pciexp_find_next_extended_cap function

Some PCIe devices have extended capability lists that contain
multiples instances of the same capability. This patch provides a
function similar to pciexp_find_extended_cap that can be used to
search through multiple instances of the same capability by returning
the offset of the next extended capability of the given type following
the passed-in offset. The base functionality of searching for a given
capability from an offset is extracted to a local helper function and
both pciexp_find_extended_cap and pciexp_find_next_extended_cap use
this helper.

Change-Id: Ie68dc26012ba57650484c4f2ff53cc694a5347aa
Signed-off-by: Tim Wawrzynczak 
---
M src/device/pciexp_device.c
M src/include/device/pciexp.h
2 files changed, 23 insertions(+), 12 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/84/57784/3