USB: Add missing license tag to ezusb driver.

ezusb: module license 'unspecified' taints kernel

Signed-off-by: Dave Jones <davej@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/usb/misc/ezusb.c b/drivers/usb/misc/ezusb.c
index 4223d76..6589268 100644
--- a/drivers/usb/misc/ezusb.c
+++ b/drivers/usb/misc/ezusb.c
@@ -158,3 +158,4 @@
 }
 EXPORT_SYMBOL_GPL(ezusb_fx2_ihex_firmware_download);
 
+MODULE_LICENSE("GPL");