mb/google/skyrim: Enable amdfw separation

Select the config to separate the AMDFW binary from the verified boot
section.

BUG=b:203597980
TEST=Build Skyrim BIOS image and boot to OS with PSP verstage passing
the hash table and PSP verifying the binaries against the hash table.
Observe boot time improvement of ~120 ms while operating  SPI bus at 66
MHz with PSP verstage enabled.
Before this patch series:
 508:finished loading body             1,978,053,432 (201,518)
After this patch series:
 508:finished loading body             7,948,797,849 (83,460)

Change-Id: I78ec6d28b4c5fc40bdade47489d58180a54dee4d
Signed-off-by: Karthikeyan Ramasubramanian <kramasub@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/67261
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Jon Murphy <jpmurphy@google.com>
Reviewed-by: Tim Van Patten <timvp@google.com>

0 files changed, 0 insertions, 0 deletions