mainboard: Add missing include <device/pci_def.h>

Change-Id: I8a7c989540e8b62de7fd291f695adac849f4680c
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/37843
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Werner Zeh <werner.zeh@siemens.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>

src/mainboard/amd/gardenia/irq_tables.c

@@ -15,6 +15,7 @@
 
 #include <console/console.h>
 #include <device/pci.h>
+#include <device/pci_def.h>
 #include <string.h>
 #include <stdint.h>
 #include <arch/pirq_routing.h>