UBUNTU: [Config] CONFIG_ARM_SMMU=y on arm64

The Cavium ThunderX SoC includes this device.
Signed-off-by: dann frazier <dann.frazier@canonical.com>
Signed-off-by: Tim Gardner <tim.gardner@canonical.com>

debian.master/config/annotations

@@ -2017,7 +2017,7 @@ CONFIG_EXYNOS_IOMMU_DEBUG                       policy<{'armhf': 'n'}>
 CONFIG_SHMOBILE_IOMMU                           policy<{'armhf': 'y'}>
 CONFIG_IPMMU_VMSA                               policy<{'armhf-generic-lpae': 'y'}>
 CONFIG_SPAPR_TCE_IOMMU                          policy<{'powerpc-powerpc64-smp': 'y', 'ppc64el': 'y'}>
-CONFIG_ARM_SMMU                                 policy<{'arm64': 'n', 'armhf': 'n'}>
+CONFIG_ARM_SMMU                                 policy<{'arm64': 'y', 'armhf': 'n'}>
 CONFIG_ARM_SMMU_V3                              policy<{'arm64': 'y'}>
 #
 CONFIG_INTEL_IOMMU_DEFAULT_ON                   note<the IOMMU can trigger boot failures> flag<REVIEW>

debian.master/config/arm64/config.common.arm64

@@ -20,6 +20,7 @@ CONFIG_ARCH_SELECT_MEMORY_MODEL=y
 CONFIG_ARCH_SPARSEMEM_DEFAULT=y
 # CONFIG_ARCH_TEGRA is not set
 CONFIG_ARCNET=m
+CONFIG_ARM_SMMU=y
 CONFIG_ATALK=m
 CONFIG_ATARI_PARTITION=y
 CONFIG_ATA_GENERIC=m

debian.master/config/armhf/config.common.armhf

@@ -17,6 +17,7 @@ CONFIG_ARCH_NEEDS_CPU_IDLE_COUPLED=y
 # CONFIG_ARCH_SELECT_MEMORY_MODEL is not set
 # CONFIG_ARCH_SPARSEMEM_DEFAULT is not set
 CONFIG_ARCNET=m
+# CONFIG_ARM_SMMU is not set
 CONFIG_ATALK=m
 CONFIG_ATARI_PARTITION=y
 CONFIG_ATA_GENERIC=m

debian.master/config/config.common.ubuntu

@@ -576,7 +576,6 @@ CONFIG_ARM_PSCI_FW=y
 # CONFIG_ARM_PTDUMP is not set
 CONFIG_ARM_SCPI_CPUFREQ=m
 CONFIG_ARM_SCPI_PROTOCOL=m
-# CONFIG_ARM_SMMU is not set
 CONFIG_ARM_SMMU_V3=y
 CONFIG_ARM_SP805_WATCHDOG=m
 CONFIG_ARM_TEGRA124_CPUFREQ=m