Adjust GPIO init to look like prior boards

Change-Id: I36ff193a1d540f1723f45ebd7326a02b24c090d7

src/mainboard/system76/galp5/Makefile.inc

@@ -1,3 +1,3 @@
 bootblock-y += bootblock.c
-ramstage-y += mainboard.c
+ramstage-y += ramstage.c
 ramstage-y += hda_verb.c

src/mainboard/system76/galp5/mainboard.c

@@ -1,12 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-
-#include <device/device.h>
-#include "gpio.h"
-
-static void mainboard_init(void *chip_info) {
-	gpio_configure_pads(gpio_table, ARRAY_SIZE(gpio_table));
-}
-
-struct chip_operations mainboard_ops = {
-	.init = mainboard_init,
-};

src/mainboard/system76/galp5/ramstage.c

@@ -0,0 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <soc/ramstage.h>
+#include "gpio.h"
+
+void mainboard_silicon_init_params(FSP_S_CONFIG *params) {
+	gpio_configure_pads(gpio_table, ARRAY_SIZE(gpio_table));
+}