USB: gadget: fix Blackfin builds after gadget cleansing

The recent change to clean out dead gadget drivers (90f79768)
missed the call to gadget_is_musbhsfc() behind CONFIG_BLACKFIN.  This
causes Blackfin gadget builds to fail since the function no longer
exists anywhere.
Signed-off-by: NMike Frysinger <vapier@gentoo.org>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

drivers/usb/gadget/epautoconf.c

@@ -266,7 +266,7 @@ struct usb_ep * __init usb_ep_autoconfig (
 		}
 
 #ifdef CONFIG_BLACKFIN
-	} else if (gadget_is_musbhsfc(gadget) || gadget_is_musbhdrc(gadget)) {
+	} else if (gadget_is_musbhdrc(gadget)) {
 		if ((USB_ENDPOINT_XFER_BULK == type) ||
 		    (USB_ENDPOINT_XFER_ISOC == type)) {
 			if (USB_DIR_IN & desc->bEndpointAddress)