dt-bindings: arm: Add arm,static-trace-id for coresight dummy source

Some dummy source HW has static trace id which cannot be changed via
software programming. Add arm,static-trace-id for static id support to
coresight dummy source.

Signed-off-by: Mao Jinlong <quic_jinlmao@quicinc.com>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Reviewed-by: Mike Leach <mike.leach@linaro.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/20241121062829.11571-2-quic_jinlmao@quicinc.com

Documentation/devicetree/bindings/arm/arm,coresight-dummy-source.yaml

@@ -38,6 +38,12 @@ properties:
     enum:
       - arm,coresight-dummy-source
 
+  arm,static-trace-id:
+    description: If dummy source needs static id support, use this to set trace id.
+    $ref: /schemas/types.yaml#/definitions/uint32
+    minimum: 1
+    maximum: 111
+
   out-ports:
     $ref: /schemas/graph.yaml#/properties/ports