amd/picasso/psp_verstage: add vboot rsa function

Add vb2ex_hwcrypto_rsa_verify_digest function for verifying rsa
signature against digest using PSP svc.

This function will be later used by vboot to accelerate rsa
verification.

BUG=b:163710320, b:161205813
TEST=build zork firmware with vboot modification, confirm it's booting
and boot time is reduced by ~230ms.

Change-Id: Ic5c1d13092db5a84191642444f3df9c26925e475
Signed-off-by: Kangheui Won <khwon@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/44456
Reviewed-by: Edward O'Callaghan <quasisec@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

0 files changed, 0 insertions, 0 deletions