arm/dt: iommu: Rename files

Rename device tree files to align with IOMMU architecture naming.

There are currently two different types of IOMMU hardware being used.
We have first generation IOMMU used by msm8610 and second generation
IOMMU used by msm8226 and msm8974. The first generation IOMMU is called
IOMMU-v0 (msm-iommu-v0.dtsi) while the second generation is called
IOMMU-v1 (msm-iommu-v1.dtsi).

msm8226 share the same version of IOMMU (v1) as 8974 but it has a
different configuration so msm8226 IOMMU is split into its own file
(msm8226-iommu.dtsi).

In addition we have version v1 and v2 of msm8974 which have a slightly
different IOMMU configuration which is handled by having dedicated
iommu file (msm8974-v1-iommu.dtsi) for each revision of the msm8974
chip.

Change-Id: I6f4c3ac8c17eaf2175890e625a3a76f33582c80a
Signed-off-by: Olav Haugan <ohaugan@codeaurora.org>
13 files changed