dt-bindings: hwmon: moortec,mr75203: fix multipleOf for coefficients

dt-bindings: hwmon: moortec,mr75203: fix multipleOf for coefficients

Few coefficients use default values multiple of 100, not 1000 (in the
example DTS and in the Linux driver):

  moortec,mr75203.example.dtb: pvt@e0680000: moortec,ts-coeff-g:0:0: 61400 is not a multiple of 1000

Fixes: bf1fdafdbc61 ("dt-bindings: hwmon: (mr75203) add coefficient properties for the thermal equation")
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20230712081124.110345-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Rob Herring <robh@kernel.org>