Lower unneccessary core clocks.

Signed-off-by: Xmister <xmisterhu@gmail.com>
Patch: Adding/Updating IOMMU/Tegra SMMU from Nvidia Reference branch l4t-l4t-r16-r2
ARM: tegra: Add Tegra AHB driver

Conflicts:
	arch/arm/configs/metallice_grouper_defconfig
missing file from ahb commit
ARM: tegra: Add SMMU enabler in AHB
amba: tegra-ahb: Remove empty *_remove()
iommu/tegra: smmu: Refrain from accessing to AHB
mach-tegra: include: mach: add missing tegra-ahb.h file
OCI: don't change host1, Enable Tegra AHB

Signed-off-by: Xmister <xmisterhu@gmail.com>