ALSA: usb-audio: support wireless devices in snd_usb_parse_datainterval

This patch adds support for dev speed USB_SPEED_WIRELESS in
snd_usb_parse_datainterval which allows the usb sound core to create
ISO urbs with the correct number and size of buffers.

Signed-off-by: Thomas Pugliese <thomas.pugliese@gmail.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

sound/usb/helper.c

@@ -118,6 +118,7 @@ unsigned char snd_usb_parse_datainterval(struct snd_usb_audio *chip,
 {
 	switch (snd_usb_get_speed(chip->dev)) {
 	case USB_SPEED_HIGH:
+	case USB_SPEED_WIRELESS:
 	case USB_SPEED_SUPER:
 		if (get_endpoint(alts, 0)->bInterval >= 1 &&
 		    get_endpoint(alts, 0)->bInterval <= 4)