Change in coreboot[master]: drivers/intel/fsp2_0: factor out and improve UPD signature check

[Felix Held (Code Review)]

Attention is currently required from: Justin Frodsham, Raul Rangel, Subrata Banik, Andrey Petrov, Patrick Rudolph, Felix Held.
Hello Justin Frodsham, build bot (Jenkins), Raul Rangel, Furquan Shaikh, Subrata Banik, Andrey Petrov, Patrick Rudolph, Justin Frodsham,

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

https://review.coreboot.org/c/coreboot/+/50090

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

Change subject: drivers/intel/fsp2_0: factor out and improve UPD signature check
......................................................................

drivers/intel/fsp2_0: factor out and improve UPD signature check

In case of a mismatch print both the UPD signature in the FSP and the
expected signature and then calls die(), since it shouldn't try calling
into the wrong FSP binary for the platform.

Signed-off-by: Justin Frodsham 
Signed-off-by: Felix Held 
Change-Id: I469836e09db6024ecb448a5261439c66d8e65daf
---
M src/drivers/intel/fsp2_0/include/fsp/util.h
M src/drivers/intel/fsp2_0/memory_init.c
M src/drivers/intel/fsp2_0/silicon_init.c
M src/drivers/intel/fsp2_0/util.c
4 files changed, 19 insertions(+), 6 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/90/50090/3