Support buffer_location for shared/host USM allocations

[tiwaria1]

Background:
When compiling for a FPGA board or creating a stand-alone IP that has global memory interfaces that support host or shared allocations, the runtime property 'buffer_location' should be used to select between different global memories for USM allocations. This is similar to how the property is used to select between different global memories that support device allocation.

Goal:
Pass the buffer_location property to the MMD layer to ensure that USM shared/host allocation occur in the correct location.

Pre-requisite:
The MMD APIs (acl_hal_mmd_shared_alloc/acl_hal_mmd_host_alloc) need to be updated to accept a buffer_location property.

cc: @bsyrowik