dt-bindings: arm-smmu: Add sm8150-smmu-500 to the list of Adreno smmus

dt-bindings: arm-smmu: Add sm8150-smmu-500 to the list of Adreno smmus

sm8150 has an smmu-500 specifically for Adreno, where the GPU is allowed
to switch pagetables.  Document the allowed 3-compatibles for this,
similar to sc7280 and sm8250.

Signed-off-by: Marijn Suijten <marijn.suijten@somainline.org>
Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20221213002626.260267-1-konrad.dybcio@linaro.org
Signed-off-by: Will Deacon <will@kernel.org>