mb/google,intel: Fix indirect include bootmode.h

Change-Id: I9e7200d60db4333551e34a615433fa21c3135db6
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/58921
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
diff --git a/src/mainboard/intel/adlrvp/ramstage.c b/src/mainboard/intel/adlrvp/ramstage.c
index 136fa45..22902bd 100644
--- a/src/mainboard/intel/adlrvp/ramstage.c
+++ b/src/mainboard/intel/adlrvp/ramstage.c
@@ -8,6 +8,7 @@
 #include <soc/gpio_soc_defs.h>
 #include <soc/pci_devs.h>
 #include <soc/soc_chip.h>
+#include <string.h>
 #include <drivers/intel/dptf/chip.h>
 #include "board_id.h"
 #include <intelblocks/power_limit.h>