Merge "sound: usb: auto suspend device only if it supports remote wakeup" into msm-4.9

	usb_chip[chip->index] = chip;

	chip->num_interfaces++;

	usb_set_intfdata(intf, chip);

	intf->needs_remote_wakeup = 1;

	usb_enable_autosuspend(chip->dev);

	atomic_dec(&chip->active);

	mutex_unlock(&register_mutex);