[M] Change in coreboot[main]: nb/amd/pi/00730F01: restructure chip ops

[Felix Held (Code Review)]

Attention is currently required from: Felix Held, Martin L Roth, Matt DeVillier, Michał Żygowski, Piotr Król.

Hello Martin L Roth, Matt DeVillier, Michał Żygowski, Piotr Król, build bot (Jenkins),

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

https://review.coreboot.org/c/coreboot/+/79084?usp=email

to look at the new patch set (#4).

Change subject: nb/amd/pi/00730F01: restructure chip ops
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nb/amd/pi/00730F01: restructure chip ops

Since this chip is a SoC and also to bring the chipset devicetree more
in line with the chipset devicetree of Sandy Bridge, merge the chip
operations of the northbridge's root complex and the northbridge itself
into one chip operations structure and use it at the top level of the
devicetree.

TEST=PC Engines APU2 still boots and doesn't show any new problems

Signed-off-by: Felix Held 
Change-Id: I8b42bac07b1409bbc797bc4428cf9f84a40e94c2
---
M src/mainboard/pcengines/apu2/variants/apu2/devicetree.cb
M src/mainboard/pcengines/apu2/variants/apu3/devicetree.cb
M src/mainboard/pcengines/apu2/variants/apu4/devicetree.cb
M src/mainboard/pcengines/apu2/variants/apu5/devicetree.cb
M src/northbridge/amd/pi/00730F01/chipset.cb
M src/northbridge/amd/pi/00730F01/northbridge.c
6 files changed, 42 insertions(+), 57 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/84/79084/4