Revert "arm64: dts: qcom: sm8450: Add PRNG"

Revert "arm64: dts: qcom: sm8450: Add PRNG"

This reverts commit 76a6dd7bfcbb ("arm64: dts: qcom: sm8450: Add PRNG"),
since the RNG HW on the SM8450 SoC is in fact a True Random Number Generator,
a more appropriate compatible should be instead as reported at [1].

[1] https://lore.kernel.org/all/20230818161720.3644424-1-quic_omprsing@quicinc.com/

Suggested-by: Om Prakash Singh <quic_omprsing@quicinc.com>
Suggested-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20230828-topic-sm8550-rng-v3-1-7a0678ca7988@linaro.org
Signed-off-by: Bjorn Andersson <andersson@kernel.org>