dt-bindings: arm: qcom,coresight-tpdm: Add support for TPDM CMB MSR register

Add property "qcom,cmb_msr_num" to support CMB MSR(mux select register)
for TPDM. It specifies the number of CMB MSR registers supported by
the TDPM.
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Tao Zhang <quic_taozha@quicinc.com>
Signed-off-by: Mao Jinlong <quic_jinlmao@quicinc.com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/1707024641-22460-10-git-send-email-quic_taozha@quicinc.com

Documentation/devicetree/bindings/arm/qcom,coresight-tpdm.yaml

@@ -69,6 +69,15 @@ properties:
     minimum: 0
     maximum: 32
 
+  qcom,cmb-msrs-num:
+    description:
+      Specifies the number of CMB MSR(mux select register) registers supported
+      by the monitor. If this property is not configured or set to 0, it means
+      this TPDM doesn't support CMB MSR.
+    $ref: /schemas/types.yaml#/definitions/uint32
+    minimum: 0
+    maximum: 32
+
   clocks:
     maxItems: 1
 
@@ -123,6 +132,7 @@ examples:
       reg = <0x06c29000 0x1000>;
 
       qcom,cmb-element-bits = <64>;
+      qcom,cmb-msrs-num = <32>;
 
       clocks = <&aoss_qmp>;
       clock-names = "apb_pclk";