USB: gadget: Disable RNDIS function by default if CONFIG_USB_ANDROID_RNDIS is set

Signed-off-by: Mike Lockwood <lockwood@android.com>
diff --git a/drivers/usb/gadget/f_rndis.c b/drivers/usb/gadget/f_rndis.c
index 39d2df5..4cfa8b6 100644
--- a/drivers/usb/gadget/f_rndis.c
+++ b/drivers/usb/gadget/f_rndis.c
@@ -850,6 +850,11 @@
 	rndis->port.func.setup = rndis_setup;
 	rndis->port.func.disable = rndis_disable;
 
+#ifdef CONFIG_USB_ANDROID_RNDIS
+	/* start disabled */
+	rndis->port.func.hidden = 1;
+#endif
+
 	status = usb_add_function(c, &rndis->port.func);
 	if (status) {
 		kfree(rndis);