[coreboot-gerrit] Change in coreboot[master]: lib/thread: Allow nesting thread_cooperate and thread_prevent_coop

[Raul Rangel (Code Review)]

Attention is currently required from: Furquan Shaikh, Julius Werner.
Hello build bot (Jenkins), Furquan Shaikh, Julius Werner,

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

https://review.coreboot.org/c/coreboot/+/56350

to look at the new patch set (#2).

Change subject: lib/thread: Allow nesting thread_cooperate and thread_prevent_coop
......................................................................

lib/thread: Allow nesting thread_cooperate and thread_prevent_coop

This change allows nesting critical sections, and frees the caller from
having to keep track of whether the thread has coop enabled.

BUG=b:179699789
TEST=Boot guybrush with SPI DMA

Suggested-by: Julius Werner 
Signed-off-by: Raul E Rangel 
Change-Id: I325ab6181b17c5c084ca1e2c181b4df235020557
---
M src/include/thread.h
M src/lib/thread.c
2 files changed, 18 insertions(+), 7 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/50/56350/2