usb: gadget: add platform module alias where it is missing

Without it udev won't be able to load the driver once it notices the
device unbound.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/usb/gadget/s3c-hsudc.c b/drivers/usb/gadget/s3c-hsudc.c
index dc9f428..3fa717c 100644
--- a/drivers/usb/gadget/s3c-hsudc.c
+++ b/drivers/usb/gadget/s3c-hsudc.c
@@ -1341,6 +1341,7 @@
 	},
 	.probe		= s3c_hsudc_probe,
 };
+MODULE_ALIAS("platform:s3c-hsudc");
 
 static int __init s3c_hsudc_modinit(void)
 {