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The ARM CoreLink DMC-500 Dynamic Memory Controller provides the programmable address region control of a TrustZone Address Space Controller. The access permissions can be defined for eight separate address regions plus a background or default region. This patch adds a DMC-500 driver to define address regions and program their access permissions as per ARM 100131_0000_02_en (r0p0) document. Change-Id: I9d33120f9480d742bcf7937e4b876f9d40c727e6