dt-bindings: arm-smmu-qcom: Add Qualcomm SC8180X compatible

Add compatible for the ARM SMMU found in the Qualcomm SC8180x platform.

Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20210121014005.1612382-1-bjorn.andersson@linaro.org


Signed-off-by: Will Deacon <will@kernel.org>