soc: qcom: smem: Redesign smem memory architecture

Smem uses static array to store legacy partition information.
New comm partition is used to replace existing legacy partition.

CRs-Fixed: 1074985
Change-Id: Ib2268181a617c23d62b5b6f857be5327113b2a67
Signed-off-by: Dhoat Harpal <hdhoat@codeaurora.org>