zte's code,first commit

Change-Id: I9a04da59e459a9bc0d67f101f700d9d7dc8d681b
diff --git a/ap/os/linux/linux-3.4.x/drivers/target/loopback/Kconfig b/ap/os/linux/linux-3.4.x/drivers/target/loopback/Kconfig
new file mode 100644
index 0000000..abe8ecb
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/drivers/target/loopback/Kconfig
@@ -0,0 +1,5 @@
+config LOOPBACK_TARGET
+	tristate "TCM Virtual SAS target and Linux/SCSI LDD fabric loopback module"
+	help
+	  Say Y here to enable the TCM Virtual SAS target and Linux/SCSI LLD
+	  fabric loopback module.