dt-bindings: crypto: qcom-qce: add SoC compatible string for ipq9574

Document the compatible string for ipq9574.

Acked-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Bhupesh Sharma <bhupesh.sharma@linaro.org>
Signed-off-by: Anusha Rao <quic_anusha@quicinc.com>
Link: https://lore.kernel.org/r/20230714093032.22400-1-quic_anusha@quicinc.com


Signed-off-by: Rob Herring <robh@kernel.org>