Add additional structure definitions for Intel In-memory Analytics
Accelerator (IAA/IAX). See specification (1) for more details.

1: https://cdrdv2.intel.com/v1/dl/getContent/721858Signed-off-by: NDave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/164704100212.1373038.18362680016033557757.stgit@djiang5-desk3.ch.intel.comSigned-off-by: NVinod Koul <vkoul@kernel.org>