dt-bindings: firmware: qcom,scm: document SCM on QCS8300 SoCs

Document scm compatible for the Qualcomm QCS8300 SoC. It is an interface
to communicate to the secure firmware.

Signed-off-by: Zhenhua Huang <quic_zhenhuah@quicinc.com>
Signed-off-by: Jingyi Wang <quic_jingyw@quicinc.com>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20240911-qcs8300_binding-v2-2-de8641b3eaa1@quicinc.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>

Author: Zhenhua Huang

Documentation/devicetree/bindings/firmware/qcom,scm.yaml

@@ -42,6 +42,7 @@ properties:
           - qcom,scm-msm8996
           - qcom,scm-msm8998
           - qcom,scm-qcm2290
+          - qcom,scm-qcs8300
           - qcom,scm-qdu1000
           - qcom,scm-sa8255p
           - qcom,scm-sa8775p