remoteproc: qcom: q6v5-mss: Remove PNoC clock from 8996 MSS

The PNoC clock is a clock for the entire PNoC bus, managed from
within the interconnect driver. Attaching it to MSS was a total hack.
Get rid of it.

Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Link: https://lore.kernel.org/r/20230721-topic-rpm_clk_cleanup-v2-10-1e506593b1bd@linaro.org


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