Change in coreboot[master]: security/vboot/secdata_tpm: Set up space for widevine counter info

[Julius Werner (Code Review)]

Attention is currently required from: Andrey Pronin, Paul Menzel, Rob Barnes, Yu-Ping Wu, Karthik Ramasubramanian.
Julius Werner has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/61521 )

Change subject: security/vboot/secdata_tpm: Set up space for widevine counter info
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Patch Set 3:

(1 comment)

Patchset:

PS3: 
Is there any additional info on what exactly this space should contain and why it is needed anywhere? I just see a deep chain of bugs that eventually leads to Andrey asking this question in b/192918550#comment64, and it doesn't look like he ever really got an answer? Just want to make sure this was well thought-out, we have been adding a lot of TPM spaces lately.