Add the missing aDSP and cDSP fastrpc compute-cb nodes for the SM8650 SoC.

Fixes: 10e02467 ("arm64: dts: qcom: sm8650: add interconnect dependent device nodes")
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20231215-topic-sm8650-upstream-dt-fastrpc-v1-1-5016f685ab5a@linaro.orgSigned-off-by: Bjorn Andersson <andersson@kernel.org>