Change in coreboot[master]: drivers/spi/tpm: Poll TPM_VALID bit until valid

[Shelley Chen (Code Review)]

Hello build bot (Jenkins),

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

https://review.coreboot.org/22370

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

Change subject: drivers/spi/tpm: Poll TPM_VALID bit until valid
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drivers/spi/tpm: Poll TPM_VALID bit until valid

In case the TPM is doing a long crypto operation the initial probe
could be very delayed.  Rather than end up in recovery make the delay
long enough to accommodate the (current) long crypto times.

Mirroring changes done on i2c side in CL:756918

BUG=b:65867313
BRANCH=None
TEST=Make sure fizz boots up

Change-Id: Ie944bfb6fe33d6e9ee794439165716ab624be491
Signed-off-by: Shelley Chen 
---
M src/drivers/spi/tpm/tpm.c
1 file changed, 11 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/70/22370/2