dt-bindings: arm: Convert CoreSight CPU debug to DT schema

Convert the CoreSight CPU debug binding to DT schema format.

Reviewed-by: Leo Yan <leo.yan@linaro.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Rob Herring <robh@kernel.org>
Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/20220603011933.3277315-4-robh@kernel.org


Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>