dt-bindings: remoteproc: qcom,msm8996-mss-pil: Fix 8996 clocks

Change RPMH to RPM (as RPMh was introduced 2 generations later) and drop
the prng reference, which made ARRAY_SIZE(clocks) !=
ARRAY_SIZE(clock-names).

Fixes: bdea1422 ("dt-bindings: remoteproc: qcom,q6v5: Move MSM8996 to schema")
Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20230626-topic-bindingsfixups-v1-2-254ae8642e69@linaro.org


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