Change in coreboot[master]: [NOTFORMERGE]link Agesa into bootblock

[Arthur Heymans (Code Review)]

Attention is currently required from: Arthur Heymans, Kyösti Mälkki.
Arthur Heymans has uploaded a new patch set (#6) to the change originally created by Arthur Heymans. ( https://review.coreboot.org/c/coreboot/+/55070 )

Change subject: [NOTFORMERGE]link Agesa into bootblock
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[NOTFORMERGE]link Agesa into bootblock

Untested but it does seem to build for AGESA targets.

For AGESA targets the APs are started by the BSP in romstage and need
to jump past the bootblock into the romstage. When there is a separate
romstage this is complicated as the APs in boot need to know where
to jump in romstage. This is done by setting a pointer in BIOSRAM.

When the romstage is linked inside the bootblock there is no need for
such tricks as the symbol for the AP jump address can directly be
referenced.

Change-Id: Ic4c71b9c9a245e07d713839fb3628cbfc0dc3457
Signed-off-by: Arthur Heymans 
---
M src/arch/x86/Kconfig
M src/arch/x86/bootblock.ld
M src/arch/x86/car.ld
M src/cpu/amd/agesa/Kconfig
M src/drivers/amd/agesa/bootblock.c
M src/drivers/amd/agesa/romstage.c
M src/northbridge/amd/agesa/agesa_helper.h
M src/vendorcode/amd/agesa/Makefile.inc
8 files changed, 28 insertions(+), 13 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/70/55070/6