usb: gadget: composite: Write SuperSpeedPlus config descriptors

Enable writing of SuperSpeedPlus descriptors for any SuperSpeedPlus
capable configuration when connected in SuperSpeedPlus.

Signed-off-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
diff --git a/drivers/usb/gadget/composite.c b/drivers/usb/gadget/composite.c
index 1d4f324..b938fcfe 100644
--- a/drivers/usb/gadget/composite.c
+++ b/drivers/usb/gadget/composite.c
@@ -473,7 +473,7 @@
 	u8				type = w_value >> 8;
 	enum usb_device_speed		speed = USB_SPEED_UNKNOWN;
 
-	if (gadget->speed == USB_SPEED_SUPER)
+	if (gadget->speed >= USB_SPEED_SUPER)
 		speed = gadget->speed;
 	else if (gadget_is_dualspeed(gadget)) {
 		int	hs = 0;
@@ -504,6 +504,10 @@
 check_config:
 		/* ignore configs that won't work at this speed */
 		switch (speed) {
+		case USB_SPEED_SUPER_PLUS:
+			if (!c->superspeed_plus)
+				continue;
+			break;
 		case USB_SPEED_SUPER:
 			if (!c->superspeed)
 				continue;