Cleanup the example DTS by adding APR and service compatibles, adding
typical properties, using proper device node names for services and
fixing indentation to 4-spaces.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220910091428.50418-14-krzysztof.kozlowski@linaro.org


Signed-off-by: Mark Brown <broonie@kernel.org>