The symbol watchdog_tombstone is not really about ChromeOS
but ELOG instead. This prepares for furher move of the
watchdog_tombstone implementation.
Change-Id: I8446fa1a395b2d17912a23b87b83277c80828874
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/63300
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
