ARM: dts: qcom: add scm definition to ipq806x

Add missing scm definition for ipq806x soc

Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com>
Link: https://lore.kernel.org/r/20200319224424.18473-1-ansuelsmth@gmail.com


Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>