dt-bindings: remoteproc: mediatek: Convert mtk,scp to json-schema

Convert the mtk,scp binding to DT schema format using json-schema.

Signed-off-by: Tinghan Shen <tinghan.shen@mediatek.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20210924033935.2127-4-tinghan.shen@mediatek.com


Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>