msm: kgsl: Protect the IOMMU register range on A6XX

Get the IOMMU register range on A6XX and add them to the list of
protected registers, to make sure they cannot be read without
disabling protected mode.

Change-Id: I4bc50bf406d3b46950603494978f86d3c2c69f09
Signed-off-by: Lynus Vaz <lvaz@codeaurora.org>
1 file changed