UPSTREAM: mb/google/dedede: Add EC_HOST_EVENT_PANIC to SCI mask

Adding EC_HOST_EVENT_PANIC to SCI mask allows the EC to interrupt the
Kernel when an EC panic occurs. If system safe mode is also enabled
on the EC, the kernel will have a short period to extract and save info
about the EC panic.

BUG=b:268377440
BRANCH=firmware-dedede-13606.B
TEST=Observe kernel ec panic handler run when ec panics

(cherry picked from commit 074d096ffed33f5ddaa24557bb2f20f51123891d)

Original-Change-Id: I24f929ae60a406d0091956dc6cab3e2876ca23e9
Original-Signed-off-by: Rob Barnes <robbarnes@google.com>
Original-Reviewed-on: https://review.coreboot.org/c/coreboot/+/73618
Original-Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Original-Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
Original-Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
GitOrigin-RevId: 074d096ffed33f5ddaa24557bb2f20f51123891d
Change-Id: I8332c9f60c31b4daff6fc32c3459ccec444e94fa
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/coreboot/+/4346472
Reviewed-by: Karthikeyan Ramasubramanian <kramasub@google.com>
Tested-by: Rob Barnes <robbarnes@google.com>
Commit-Queue: Karthikeyan Ramasubramanian <kramasub@google.com>
diff --git a/src/mainboard/google/dedede/variants/baseboard/include/baseboard/ec.h b/src/mainboard/google/dedede/variants/baseboard/include/baseboard/ec.h
index 6ceaa39..6eb20d4 100644
--- a/src/mainboard/google/dedede/variants/baseboard/include/baseboard/ec.h
+++ b/src/mainboard/google/dedede/variants/baseboard/include/baseboard/ec.h
@@ -22,7 +22,8 @@
 	 EC_HOST_EVENT_MASK(EC_HOST_EVENT_USB_CHARGER)       |\
 	 EC_HOST_EVENT_MASK(EC_HOST_EVENT_MKBP)              |\
 	 EC_HOST_EVENT_MASK(EC_HOST_EVENT_PD_MCU)            |\
-	 EC_HOST_EVENT_MASK(EC_HOST_EVENT_MODE_CHANGE))
+	 EC_HOST_EVENT_MASK(EC_HOST_EVENT_MODE_CHANGE)       |\
+	 EC_HOST_EVENT_MASK(EC_HOST_EVENT_PANIC))
 
 #define MAINBOARD_EC_SMI_EVENTS \
 	(EC_HOST_EVENT_MASK(EC_HOST_EVENT_LID_CLOSED))