mb/google/guybrush: Fix EC SCI configuration

This change fixes two problems:
1) We had the enum values for .direction and .level swapped. The naming
is very confusing...
2) ESPI_SYS is not a good event to use for EC SCI. It is a level/low
event that is only cleared by reading the eSPI status register 0x9C.
Cezanne has added a new event source that directly exposes the SCI bit.
This is the correct event source to use for EC SCI.

BUG=b:186045622, b:181139095
TEST=`lpc sci` on EC console and see /proc/interrupts increase by 1

Signed-off-by: Raul E Rangel <rrangel@chromium.org>
Change-Id: I764b9ec202376d5124331a320767cbf79371dc07
Reviewed-on: https://review.coreboot.org/c/coreboot/+/52673
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin Roth <martinroth@google.com>
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>

0 files changed, 0 insertions, 0 deletions