zte's code,first commit

Change-Id: I9a04da59e459a9bc0d67f101f700d9d7dc8d681b
diff --git a/ap/os/linux/linux-3.4.x/include/acpi/reboot.h b/ap/os/linux/linux-3.4.x/include/acpi/reboot.h
new file mode 100644
index 0000000..0419184
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/include/acpi/reboot.h
@@ -0,0 +1,11 @@
+#ifndef __ACPI_REBOOT_H
+#define __ACPI_REBOOT_H
+
+#ifdef CONFIG_ACPI
+extern void acpi_reboot(void);
+#else
+static inline void acpi_reboot(void) { }
+#endif
+
+#endif
+