Change in coreboot[master]: drivers/tpm/spi: Convert static functions to enum cb_err return types

[Tim Wawrzynczak (Code Review)]

Attention is currently required from: Subrata Banik, Tim Wawrzynczak, Christian Walter, Julius Werner.
Hello build bot (Jenkins), Subrata Banik, Christian Walter, Julius Werner,

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

https://review.coreboot.org/c/coreboot/+/61976

to look at the new patch set (#7).

Change subject: drivers/tpm/spi: Convert static functions to enum cb_err return types
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drivers/tpm/spi: Convert static functions to enum cb_err return types

Instead of using raw integers to indicate success/failure, enum cb_err
can be used to makes things clearer, so this patch converts most
functions to return that instead of int.

TEST=boot to OS on google/dratini, no TPM errors seen

Signed-off-by: Tim Wawrzynczak 
Change-Id: Ifb749c931fe008b16d42fcf157af820ec8fbf5ac
---
M src/drivers/spi/tpm/tpm.c
1 file changed, 71 insertions(+), 73 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/76/61976/7