usb: gadget: android: fix compilation error

Fix compile errors when USB_GADGET_DEBUG is defined.

Change-Id: I5ea8f50a21bf8c17659ca8fd3f9103ec6332ec60
Signed-off-by: Jack Pham <jackp@codeaurora.org>
diff --git a/drivers/usb/gadget/f_qc_ecm.c b/drivers/usb/gadget/f_qc_ecm.c
index 7fedaf6..1c64955 100644
--- a/drivers/usb/gadget/f_qc_ecm.c
+++ b/drivers/usb/gadget/f_qc_ecm.c
@@ -403,6 +403,8 @@
 static void ecm_qc_notify_complete(struct usb_ep *ep, struct usb_request *req)
 {
 	struct f_ecm_qc			*ecm = req->context;
+	struct usb_composite_dev	*cdev = ecm->port.func.config->cdev;
+	struct usb_cdc_notification	*event = req->buf;
 
 	switch (req->status) {
 	case 0:
@@ -584,6 +586,7 @@
 static void ecm_qc_disable(struct usb_function *f)
 {
 	struct f_ecm_qc		*ecm = func_to_ecm_qc(f);
+	struct usb_composite_dev	*cdev = ecm->port.func.config->cdev;
 
 	DBG(cdev, "ecm deactivated\n");