zte's code,first commit

Change-Id: I9a04da59e459a9bc0d67f101f700d9d7dc8d681b
diff --git a/ap/os/linux/linux-3.4.x/drivers/virtio/config.c b/ap/os/linux/linux-3.4.x/drivers/virtio/config.c
new file mode 100644
index 0000000..f70bcd2
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/drivers/virtio/config.c
@@ -0,0 +1,12 @@
+/* Configuration space parsing helpers for virtio.
+ *
+ * The configuration is [type][len][... len bytes ...] fields.
+ *
+ * Copyright 2007 Rusty Russell, IBM Corporation.
+ * GPL v2 or later.
+ */
+#include <linux/err.h>
+#include <linux/virtio.h>
+#include <linux/virtio_config.h>
+#include <linux/bug.h>
+