soc/intel/jasperlake: Send End-of-Post message to CSE
This is done to ensure the CSE will not execute any pre-boot commands
after it receives this command. Verified EOP and error recovery sequence
from Intel doc#619830.
Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Change-Id: I36fe448ff279ba054ad5e79e71c995dc915db21e
Reviewed-on: https://review.coreboot.org/c/coreboot/+/55633
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>