dt-bindings: hwmon: correct indentation and style in examples

Fix mixed indentation to 4-spaces, remove unnecessary suffix from
i2c node name and use lower-case hex.  No functional impact.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20230118172237.349111-2-krzysztof.kozlowski@linaro.org


Signed-off-by: Guenter Roeck <linux@roeck-us.net>