usb:gadget Simplify usb_decode_get_set_descriptor function.

Patch moves switch responsible for decoding descriptor type
outside snprintf. It improves code readability a little.
Signed-off-by: Pawel Laszczak <pawell@cadence.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>

drivers/usb/gadget/debug.c

@@ -105,9 +105,8 @@ static void usb_decode_get_set_descriptor(__u8 bRequestType, __u8 bRequest,
 					  __u16 wValue, __u16 wIndex,
 					  __u16 wLength, char *str, size_t size)
 {
-	snprintf(str, size, "%s %s Descriptor(Index = %d, Length = %d)",
-		 bRequest == USB_REQ_GET_DESCRIPTOR ? "Get" : "Set",
-		 ({ char *s;
+	char *s;
+
 	switch (wValue >> 8) {
 	case USB_DT_DEVICE:
 		s = "Device";
@@ -160,7 +159,11 @@ static void usb_decode_get_set_descriptor(__u8 bRequestType, __u8 bRequest,
 	default:
 		s = "UNKNOWN";
 		break;
-			} s; }), wValue & 0xff, wLength);
+	}
+
+	snprintf(str, size, "%s %s Descriptor(Index = %d, Length = %d)",
+		bRequest == USB_REQ_GET_DESCRIPTOR ? "Get" : "Set",
+		s, wValue & 0xff, wLength);
 }
 
 static void usb_decode_get_configuration(__u16 wLength, char *str, size_t size)