Merge "sound: usb: Increase maximum transfer buffer limit" into msm-4.9

#define IOVA_XFER_RING_MAX (IOVA_XFER_BUF_BASE - PAGE_SIZE)

#define IOVA_XFER_BUF_MAX (0xfffff000 - PAGE_SIZE)

#define MAX_XFER_BUFF_LEN (2 * PAGE_SIZE)

#define MAX_XFER_BUFF_LEN (24 * PAGE_SIZE)

struct iova_info {

	struct list_head list;