dt-bindings: nvmem: mxs-ocotp: drop unneeded address/size-cells

Referenced nvmem.yaml schema already defines address/size-cells, so
remove redundant entries and use unevaluatedProperties: false.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Message-ID: <20230611140330.154222-15-srinivas.kandagatla@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>