[coreboot] AMD binaryPI board removals

[Kyösti Mälkki]

Hi

As of 27th November and commit [1]  platforms using AMD binaryPI blobs
have been disabled from automatic  build testing. The following are
affected:
* amd/bettong
* amd/db-ft3b-lc
* amd/lamar
* amd/olivehillplus
* bap/ode_e21XX

This is inline with CAR_GLOBAL_MIGRATION deprecation as mandated by
4.11 release requirements. You should expect that the board sources
and platform support will disappear by 14th December, at latest,
unless you show interest *and* are able to provide bootlogs for the
boards above.

PCEngines APU2 and variants are an exception to this, they were
converted to POSTCAR_STAGE and work away from ROMCC_BOOTBLOCK shows
promising results.

[1] https://review.coreboot.org/c/coreboot/+/37170

Regards,
Kyösti Mälkki