usb: gadget: r8a66597-udc: remove useless cast for driver.name

device_driver name is const char pointer, so it not useful to cast
udc_name (which is already const char).

Reviewed-by: Yoshihiro Shimoda <[e-mail]>
Signed-off-by: Corentin Labbe <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

drivers/usb/gadget/udc/r8a66597-udc.c

···
 static struct platform_driver r8a66597_driver = {
 	.remove =	r8a66597_remove,
 	.driver		= {
-		.name =	(char *) udc_name,
+		.name =	udc_name,
 	},
 };