iommu/arm-smmu-qcom: Move the adreno smmu specific impl

Adreno(GPU) SMMU and APSS(Application Processor SubSystem) SMMU
both implement "arm,mmu-500" in some QTI SoCs and to run through
adreno smmu specific implementation such as enabling split pagetables
support, we need to match the "qcom,adreno-smmu" compatible first
before apss smmu or else we will be running apps smmu implementation
for adreno smmu and the additional features for adreno smmu is never
set. For ex: we have "qcom,sc7280-smmu-500" compatible for both apps
and adreno smmu implementing "arm,mmu-500", so the adreno smmu
implementation is never reached because the current sequence checks
for apps smmu compatible(qcom,sc7280-smmu-500) first and runs that
specific impl and we never reach adreno smmu specific implementation.

Suggested-by: Akhil P Oommen <[email protected]>
Signed-off-by: Sai Prakash Ranjan <[email protected]>
Reviewed-by: Bjorn Andersson <[email protected]>
Acked-by: Jordan Crouse <[email protected]>
Link: https://lore.kernel.org/r/c42181d313fdd440011541a28cde8cd10fffb9d3.1623155117.git.saiprakash.ranjan@codeaurora.org
Signed-off-by: Will Deacon <[email protected]>

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