usb: gadget: bcm63xx_udc: remove unnecessary initializations

udc-core now sets dma-related and parent fields
for us, we don't need to do it ourselves.
Signed-off-by: NFelipe Balbi <balbi@ti.com>

drivers/usb/gadget/bcm63xx_udc.c

@@ -2371,9 +2371,7 @@ static int bcm63xx_udc_probe(struct platform_device *pdev)
 
 	udc->gadget.ops = &bcm63xx_udc_ops;
 	udc->gadget.name = dev_name(dev);
-	udc->gadget.dev.parent = dev;
 	udc->gadget.dev.release = bcm63xx_udc_gadget_release;
-	udc->gadget.dev.dma_mask = dev->dma_mask;
 
 	if (!pd->use_fullspeed && !use_fullspeed)
 		udc->gadget.max_speed = USB_SPEED_HIGH;