Declare acpi_is_wakeup_early() only once

Change-Id: I5314d76168c40a6327d4a9ac3b4f4fb05497d6fc
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/4525
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
diff --git a/src/mainboard/via/epia-m700/romstage.c b/src/mainboard/via/epia-m700/romstage.c
index ef0cef3..e01fd4b 100644
--- a/src/mainboard/via/epia-m700/romstage.c
+++ b/src/mainboard/via/epia-m700/romstage.c
@@ -27,6 +27,7 @@
 #include <stdint.h>
 #include <device/pci_def.h>
 #include <device/pci_ids.h>
+#include <arch/acpi.h>
 #include <arch/io.h>
 #include <device/pnp_def.h>
 #include <arch/hlt.h>