[S] Change in coreboot[master]: soc/amd/*: Enable override of MAINBOARD_BLOBS_DIR

[Fred Reitberger (Code Review)]

Attention is currently required from: Jason Glenesk, Raul Rangel, Matt DeVillier, Fred Reitberger, Felix Held.

Hello build bot (Jenkins), Jason Glenesk, Raul Rangel, Matt DeVillier, Felix Held,

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

https://review.coreboot.org/c/coreboot/+/69410

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

Change subject: soc/amd/*: Enable override of MAINBOARD_BLOBS_DIR
......................................................................

soc/amd/*: Enable override of MAINBOARD_BLOBS_DIR

MAINBOARD_BLOBS_DIR is defined the same way by
picasso/cezanne/mendocino/morgana/glinda and unused by stoneyridge, so
move it to a common area.

This makefile variable is currently only used to locate APCB blobs for
the different mainboards.

Add a Kconfig option to point to the APCB blobs directory. This allows
simple overriding to locations such as site-local.

TEST=Timeless builds

Signed-off-by: Fred Reitberger 
Change-Id: I0702fdb97fbc2c73d97994ab4d5161ff0f467518
---
M src/soc/amd/cezanne/Makefile.inc
M src/soc/amd/common/Kconfig.common
M src/soc/amd/common/Makefile.inc
M src/soc/amd/glinda/Makefile.inc
M src/soc/amd/mendocino/Makefile.inc
M src/soc/amd/morgana/Makefile.inc
M src/soc/amd/picasso/Makefile.inc
7 files changed, 30 insertions(+), 13 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/10/69410/3