IOMMU Updates for Linux v4.6

This time with:

	* Updates for the Exynos IOMMU driver to make use of default
	  domains and to add support for the SYSMMU v5

	* New Mediatek IOMMU driver

	* Support for the ARMv7 short descriptor format in the
	  io-pgtable code

	* Default domain support for the ARM SMMU

	* Couple of other small fixes all over the place
Merge branches 'arm/rockchip', 'arm/exynos', 'arm/smmu', 'arm/mediatek', 'arm/io-pgtable', 'arm/renesas' and 'core' into next