[M] Change in coreboot[main]: soc/intel/apollolake: Add a loader for the IBB

[Sean Rhodes (Code Review)]

Attention is currently required from: Andrey Petrov, Angel Pons, Arthur Heymans, Michał Żygowski, Sean Rhodes, Subrata Banik.

Hello Andrey Petrov, build bot (Jenkins),

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

https://review.coreboot.org/c/coreboot/+/65270?usp=email

to look at the new patch set (#78).

The following approvals got outdated and were removed:
Verified+1 by build bot (Jenkins)

Change subject: soc/intel/apollolake: Add a loader for the IBB
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soc/intel/apollolake: Add a loader for the IBB

Add a loader that will load the IBB into the CSE via the Ring Protocol
Buffer.

All registers were taken from Intel document number #336561.

Change-Id: Ia41e3909f8099d2ea864166e9ea03e10e40a1b68
Signed-off-by: Sean Rhodes 
---
M src/soc/intel/apollolake/Makefile.mk
A src/soc/intel/apollolake/bootflow.md
A src/soc/intel/apollolake/include/soc/loader.h
A src/soc/intel/apollolake/loader.c
4 files changed, 206 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/70/65270/78