dt-bindings: mfd: qcom,tcsr: Document SDX55 TCSR

Add compatible for SDX55 TCSR block.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/20230306072618.10770-1-krzysztof.kozlowski@linaro.org

Documentation/devicetree/bindings/mfd/qcom,tcsr.yaml

@@ -25,6 +25,7 @@ properties:
           - qcom,sc8280xp-tcsr
           - qcom,sdm630-tcsr
           - qcom,sdm845-tcsr
+          - qcom,sdx55-tcsr
           - qcom,sdx65-tcsr
           - qcom,sm8150-tcsr
           - qcom,sm8450-tcsr