dt-bindings: remoteproc: qcom,sc8280xp-pas: split into separate file

Split SC8280XP remote processor Peripheral Authentication Service bindings
into their own file to reduce complexity and make maintenance easier.

While moving correctly constrain the number of interrupts per specific
device.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20221124184333.133911-11-krzysztof.kozlowski@linaro.org