ELOG: Introduce elog_gsmi variants

This avoids a lot of if (CONFIG(ELOG_GSMI)) boilerplate.

Change-Id: I87d25c820daedeb33b3b474a6632a89ea80b0867
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/36647
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/src/mainboard/google/link/mainboard_smi.c b/src/mainboard/google/link/mainboard_smi.c
index 96ae1cc..cd8fb09 100644
--- a/src/mainboard/google/link/mainboard_smi.c
+++ b/src/mainboard/google/link/mainboard_smi.c
@@ -32,11 +32,9 @@
 {
 	u8 cmd = google_chromeec_get_event();
 
-#if CONFIG(ELOG_GSMI)
 	/* Log this event */
 	if (cmd)
-		elog_add_event_byte(ELOG_TYPE_EC_EVENT, cmd);
-#endif
+		elog_gsmi_add_event_byte(ELOG_TYPE_EC_EVENT, cmd);
 
 	switch (cmd) {
 	case EC_HOST_EVENT_LID_CLOSED: