The DWORD used to indicate the Embedded Firmware Structure's generation uses 1 to indicate a first-gen structure, e.g. a SPI device's erased value of 0xffffffff. A 0 in bit 0 is how Client PSPs will interpret the structure as designed for second-gen. This change and the original addition should have no effects on any current products as none interpret offset 0x24. BUG=b:158755102 TEST=inspect EFS in coreboot.rom Signed-off-by: Marshall Dawson <marshalldawson3rd@gmail.com> Change-Id: If391f356a1811ed04acdfe9ab9de2e146f6ef5fd Reviewed-on: https://review.coreboot.org/c/coreboot/+/47769 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Felix Held <felix-coreboot@felixheld.de>