[M] Change in coreboot[main]: soc/amd/common: Support sbin ucode files

[Maximilian Brune (Code Review)]

Attention is currently required from: Felix Held, Jason Glenesk, Martin Roth, Matt DeVillier, Maximilian Brune, Patrick Rudolph, Raul Rangel.

Maximilian Brune has uploaded a new patch set (#9) to the change originally created by Fred Reitberger. ( https://review.coreboot.org/c/coreboot/+/68122?usp=email )

Change subject: soc/amd/common: Support sbin ucode files
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soc/amd/common: Support sbin ucode files

Recent PI releases have been distributing the ucode patch files as sbin
files instead of bin files. The sbin uses a 256 byte amd_fw_header to
wrap the bin file.

Offset 0x14 of the header is the size field. The can be extracted with
od to get the size of the ucode bin file. The bin file can then be
extracted with dd and placed in the build directory for inclusion as a
cbfs file.

In the case where both an sbin and bin ucode file are present, the bin
file will be added and a note will print at the start of the build about
the sbin file being skipped.

TEST=builds with only bin, only sbin, non-matching bin and sbin,
matching bin and sbin files

Signed-off-by: Fred Reitberger 
Signed-off-by: Maximilian Brune 
Change-Id: I29768ea19543bdc76662e687f59bf31b76f555ae
---
M src/soc/amd/common/Makefile.mk
M src/soc/amd/common/block/cpu/Makefile.mk
2 files changed, 45 insertions(+), 13 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/22/68122/9