mb/scaleway/tagada: Set DIMM slot information from mainboard

This field is not provided by the soc code so add it.

TEST=Check the output of 'dmidecode -t memory'

Change-Id: I6fdf3520da62336a5c654575ed8d1f33eb4f4dc5
Signed-off-by: Julien Viard de Galbert <jviarddegalbert@online.net>
Reviewed-on: https://review.coreboot.org/24912
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>

src/mainboard/scaleway/tagada/ramstage.c

@@ -20,6 +20,7 @@
 #include <fsp/api.h>
 #include <soc/ramstage.h>
 #include <smbios.h>
+#include <spd.h>
 
 #include "bmcinfo.h"
 
@@ -86,3 +87,12 @@ smbios_board_type smbios_mainboard_board_type(void)
 {
 	return SMBIOS_BOARD_TYPE_SERVER_BLADE;
 }
+
+/* Add any mainboard specific information for dimm */
+void mainboard_add_dimm_info(
+	struct memory_info *mem_info,
+	int channel, int dimm, int index)
+{
+	/* Mainboard only has DDR4 DIMM slots */
+	mem_info->dimm[index].mod_type = SPD_UDIMM;
+}