Change in coreboot[master]: Add ENV_STAGE_SUPPORTS_SMP to clean up spinlock stubs

[Kyösti Mälkki (Code Review)]

Attention is currently required from: Jason Glenesk, Marshall Dawson, Tim Wawrzynczak, Julius Werner, Kyösti Mälkki, Karthikeyan Ramasubramanian, Felix Held.
Hello build bot (Jenkins), Jason Glenesk, Raul Rangel, Marshall Dawson, Tim Wawrzynczak, Julius Werner, Karthikeyan Ramasubramanian, Felix Held,

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

https://review.coreboot.org/c/coreboot/+/59094

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

Change subject: Add ENV_STAGE_SUPPORTS_SMP to clean up spinlock stubs
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Add ENV_STAGE_SUPPORTS_SMP to clean up spinlock stubs

CONFIG(SMP) was an invalid condition to use in cases where one
stage requires spinlocks and another one does not. The
stage not requiring spinlock still required <smp/spinlock.h>
to be implemented with no-op stubs.

This reverts commit 037ee4b556
  soc/amd/picasso: Add dummy spinlock for psp_verstage

Change-Id: Iba52febdeee78294f916775ee9ce8a82d6203570
Signed-off-by: Kyösti Mälkki 
---
D src/arch/arm/include/armv4/arch/smp/spinlock.h
M src/arch/x86/include/arch/smp/spinlock.h
M src/include/rules.h
M src/include/smp/spinlock.h
D src/soc/amd/common/psp_verstage/include/arch/smp/spinlock.h
5 files changed, 12 insertions(+), 45 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/94/59094/3