Change in flashrom[master]: par_master: Use new API to register shutdown function

[Anastasia Klimchuk (Code Review)]

Attention is currently required from: Angel Pons, Anastasia Klimchuk.
Hello build bot (Jenkins), Nico Huber, Edward O'Callaghan, Angel Pons,

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

https://review.coreboot.org/c/flashrom/+/57156

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

Change subject: par_master: Use new API to register shutdown function
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par_master: Use new API to register shutdown function

This allows par masters to register shutdown function in par_master
struct, which means there is no need to call register_shutdown in init
function, since this call is now a part of register_par_master.

As a consequence of using new API, this patch also fixes propagation
of register_par_master() return values.

BUG=b:185191942
TEST=builds and ninja test

Change-Id: Ief7be907f53878b4b6567b52889735e5fff64ead
Signed-off-by: Anastasia Klimchuk 
---
M nic3com.c
M nicrealtek.c
2 files changed, 4 insertions(+), 15 deletions(-)

git pull ssh://review.coreboot.org:29418/flashrom refs/changes/56/57156/2