mb/google/dedede: Log mainboard events to elog

BUG=b:148410914
TEST=Build the mainboard.

Signed-off-by: Karthikeyan Ramasubramanian <kramasub@google.com>
Change-Id: I7dffa5c021787dca75786ead42164bd29ba56828
Reviewed-on: https://review.coreboot.org/c/coreboot/+/38724
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Justin TerAvest <teravest@chromium.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>

src/mainboard/google/dedede/smihandler.c

@@ -8,7 +8,9 @@
 
 #include <baseboard/variants.h>
 #include <cpu/x86/smm.h>
+#include <ec/google/chromeec/ec.h>
 #include <ec/google/chromeec/smm.h>
+#include <elog.h>
 #include <intelblocks/smihandler.h>
 #include <variant/ec.h>
 
@@ -35,3 +37,8 @@ int mainboard_smi_apmc(u8 apmc)
 				MAINBOARD_EC_SMI_EVENTS);
 	return 0;
 }
+
+void elog_gsmi_cb_mainboard_log_wake_source(void)
+{
+	google_chromeec_log_events(MAINBOARD_EC_LOG_EVENTS | MAINBOARD_EC_S0IX_WAKE_EVENTS);
+}