dt-bindings: remoteproc: qcom: sc7180-pas: Add ADSP compatible

SC7180 has an ADSP remoteproc. Add it's compatible to the bindings and
refactor the schema conditionals to fit the ADSP.

Signed-off-by: Nikita Travkin <nikita@trvn.ru>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20230907-sc7180-adsp-rproc-v3-1-6515c3fbe0a3@trvn.ru


Signed-off-by: Bjorn Andersson <andersson@kernel.org>