Change in flashrom[master]: pcidev: Move pci_get_dev() logic into canonical place

[Edward O'Callaghan (Code Review)]

Attention is currently required from: Subrata Banik, Angel Pons.
Hello build bot (Jenkins), Nico Huber, Subrata Banik, Angel Pons, Anastasia Klimchuk, Peter Marheine,

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

https://review.coreboot.org/c/flashrom/+/59276

to look at the new patch set (#5).

Change subject: pcidev: Move pci_get_dev() logic into canonical place
......................................................................

pcidev: Move pci_get_dev() logic into canonical place

BUG=b:220950271
TEST=```sudo ./flashrom -p internal --flash-size
<snip>
Found Programmer flash chip "Opaque flash chip" (16384 kB, Programmer-specific) mapped at physical address 0x0000000000000000.
16777216
```

Change-Id: Id9ce055d5e5d347520ec5002b8c6548e60eaa0a7
Signed-off-by: Edward O'Callaghan 
---
M board_enable.c
M pcidev.c
M programmer.h
3 files changed, 15 insertions(+), 9 deletions(-)

git pull ssh://review.coreboot.org:29418/flashrom refs/changes/76/59276/5