Change in coreboot[master]: device/pci_device.c: Improve pci_bridge_route() readability

[Angel Pons (Code Review)]

Attention is currently required from: Arthur Heymans.
Angel Pons has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/59131 )

Change subject: device/pci_device.c: Improve pci_bridge_route() readability
......................................................................

Patch Set 1:

(2 comments)

File src/device/pci_device.c:

https://review.coreboot.org/c/coreboot/+/59131/comment/e62581c4_e5dba8b9 
PS1, Line 1337: u32 raw;
              : 		struct {
              : 			u8 primary;
              : 			u8 secondary;
              : 			u8 subordinate;
              : 			u8 _latency;
              : 		} __packed;
This is not portable.

https://review.coreboot.org/c/coreboot/+/59131/comment/702b023a_64ece160 
PS1, Line 1356: parent
link