Mapping memory handles to virtual memory addresses do not make them
accessible. The set access function is needed to make the memory
mappings accessible to specific agents. The get access function
returns current access properties for individual agents.
This is part of patch series for Virtual Memory API.
Change-Id: I152ba0557fd2a802eb9d840568b68cdd1911b72c
David Yat Sin
13fbd8a232