arm64: dts: qcom: ipq9574: update TRNG compatible

arm64: dts: qcom: ipq9574: update TRNG compatible

RNG hardware versions greater than 3.0 are Truly Random Number
Generators (TRNG). In IPQ9574, the RNGblock is a TRNG.

This patch corrects the compatible property which correctly describes
the hardware without making any functional changes

Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Signed-off-by: Md Sadre Alam <quic_mdalam@quicinc.com>
Link: https://lore.kernel.org/r/20241226114500.2623804-4-quic_mdalam@quicinc.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>