iommu: arm-smmu: Add support for new attributes

Increase client control of iommu fault handling by allowing
separate configuration of the HUPCF and CFCFG bits.

Change-Id: Ifc6071775f171ecfe60a9f0824491536b3295ec4
Signed-off-by: Patrick Daly <pdaly@codeaurora.org>
Signed-off-by: Isaac J. Manjarres <isaacm@codeaurora.org>