arm64: dts: qcom: apq8016-sbc: Define leds outside of soc node

arm64: dts: qcom: apq8016-sbc: Define leds outside of soc node

The leds node does not use any memory regions of the SoC and should
therefore be declared outside the "soc" node.

Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Link: https://lore.kernel.org/r/20200720085406.6716-4-stephan@gerhold.net
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>