zte's code,first commit

Change-Id: I9a04da59e459a9bc0d67f101f700d9d7dc8d681b
diff --git a/ap/os/linux/linux-3.4.x/include/scsi/scsi_scan.h b/ap/os/linux/linux-3.4.x/include/scsi/scsi_scan.h
new file mode 100644
index 0000000..7889888
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/include/scsi/scsi_scan.h
@@ -0,0 +1,11 @@
+#ifndef _SCSI_SCSI_SCAN_H
+#define _SCSI_SCSI_SCAN_H
+
+#ifdef CONFIG_SCSI
+/* drivers/scsi/scsi_scan.c */
+extern int scsi_complete_async_scans(void);
+#else
+static inline int scsi_complete_async_scans(void) { return 0; }
+#endif
+
+#endif /* _SCSI_SCSI_SCAN_H */