[M] Change in coreboot[master]: mb/asus/p8x7x-series: Refactor mainboard_get_spd()

[Keith Hui (Code Review)]

Attention is currently required from: Arthur Heymans, Keith Hui.

Hello build bot (Jenkins), Angel Pons, Arthur Heymans,

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

https://review.coreboot.org/c/coreboot/+/61540

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

Change subject: mb/asus/p8x7x-series: Refactor mainboard_get_spd()
......................................................................

mb/asus/p8x7x-series: Refactor mainboard_get_spd()

This mainboard-specific hook of Sandy/Ivy native RAM init sequence,
likely generated by autoport, is the same for all variants.
Consolidate them into a separate unit at the baseboard level.

The refactored routine is declared __weak, allowing future variants to
override it should they deviate from the norm.

Build tested on all variants.

Change-Id: I3b9c616a6c722e1f0fc124ced225efdcadb46b25
Signed-off-by: Keith Hui 
---
M src/mainboard/asus/p8x7x-series/Makefile.inc
A src/mainboard/asus/p8x7x-series/early_init.c
M src/mainboard/asus/p8x7x-series/variants/p8c_ws/early_init.c
M src/mainboard/asus/p8x7x-series/variants/p8h77-v/early_init.c
M src/mainboard/asus/p8x7x-series/variants/p8z77-m/early_init.c
M src/mainboard/asus/p8x7x-series/variants/p8z77-m_pro/early_init.c
M src/mainboard/asus/p8x7x-series/variants/p8z77-v/early_init.c
M src/mainboard/asus/p8x7x-series/variants/p8z77-v_lx2/early_init.c
8 files changed, 31 insertions(+), 48 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/40/61540/3