It was complicated and weird to check both the cookie and whether one table is a null pointer. Just checking the cookie is enough. TEST=Identical test on all AMD SOC platform Change-Id: Icab74714990f74e11fd5e899661e4e2d41230541 Signed-off-by: Zheng Bao <fishbaozi@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/81208 Reviewed-by: Felix Held <felix-coreboot@felixheld.de> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>