The IOVA for the buffers that are attached to the direct
link receive copy engine need to be contiguous for optimal
memory mapping on ADSP.
Fix is to add multi pages prealloc support for HIF layer
and add a pool entry to multi pages prealloc for direct
link receive copy engine.
Change-Id: Ieb253bd3c1b6550e4c1c63cd587993891ac817f2
CRs-Fixed: 3497689