[M] Change in coreboot[main]: [RFC] region: Introduce region_create() functions

[Nico Huber (Code Review)]

Attention is currently required from: Jérémy Compostella, Martin L Roth, Maximilian Brune.

Hello Jérémy Compostella, Martin L Roth, build bot (Jenkins),

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

https://review.coreboot.org/c/coreboot/+/79905?usp=email

to look at the new patch set (#6).

The following approvals got outdated and were removed: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

Change subject: [RFC] region: Introduce region_create() functions
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[RFC] region: Introduce region_create() functions

This introduces two new functions to create region objects. They allow
us to check for integer overflows (region_create_untrusted()) or assert
their absence (region_create()).

Again, FIT payload support is left out, as it doesn't use the region API
(only the struct).

Change-Id: I4ae3e6274c981c9ab4fb1263c2a72fa68ef1c32b
Signed-off-by: Nico Huber 
---
M src/commonlib/include/commonlib/region.h
M src/cpu/x86/smm/smm_module_loader.c
M src/drivers/intel/fsp1_1/fsp_report.c
M src/drivers/intel/fsp2_0/fspt_report.c
M src/drivers/spi/spi_flash.c
M src/drivers/spi/winbond.c
M src/include/cpu/x86/smm.h
M src/lib/fmap.c
M src/soc/qualcomm/common/qclib.c
M util/cbfstool/cbfstool.c
M util/cbfstool/cse_serger.c
11 files changed, 91 insertions(+), 68 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/05/79905/6