dt-bindings: crypto: qcom,prng: document support for SA8255p

Document SA8255p compatible for the True Random Number Generator.
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Nikunj Kela <quic_nkela@quicinc.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

Documentation/devicetree/bindings/crypto/qcom,prng.yaml

@@ -17,6 +17,7 @@ properties:
           - qcom,prng-ee  # 8996 and later using EE
       - items:
           - enum:
+              - qcom,sa8255p-trng
               - qcom,sa8775p-trng
               - qcom,sc7280-trng
               - qcom,sm8450-trng