dummy_hcd: use USB_DT[_SS]_HUB

Fix  using  the  bare numbers to set the 'bDescriptorType' field of the Hub
Descriptors while the values are #define'd in <linux/usb/ch11.h>.

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/usb/gadget/udc/dummy_hcd.c b/drivers/usb/gadget/udc/dummy_hcd.c
index 7592db7..181112c 100644
--- a/drivers/usb/gadget/udc/dummy_hcd.c
+++ b/drivers/usb/gadget/udc/dummy_hcd.c
@@ -1923,7 +1923,7 @@
 ss_hub_descriptor(struct usb_hub_descriptor *desc)
 {
 	memset(desc, 0, sizeof *desc);
-	desc->bDescriptorType = 0x2a;
+	desc->bDescriptorType = USB_DT_SS_HUB;
 	desc->bDescLength = 12;
 	desc->wHubCharacteristics = cpu_to_le16(
 			HUB_CHAR_INDV_PORT_LPSM |
@@ -1936,7 +1936,7 @@
 static inline void hub_descriptor(struct usb_hub_descriptor *desc)
 {
 	memset(desc, 0, sizeof *desc);
-	desc->bDescriptorType = 0x29;
+	desc->bDescriptorType = USB_DT_HUB;
 	desc->bDescLength = 9;
 	desc->wHubCharacteristics = cpu_to_le16(
 			HUB_CHAR_INDV_PORT_LPSM |