dt-bindings: arm: cpus: Add kryo280 compatible

Kryo280 is found in msm8998, so add it to the list of cpu compatibles.
Signed-off-by: Amit Kucheria <amit.kucheria@linaro.org>
Signed-off-by: Rob Herring <robh@kernel.org>

Documentation/devicetree/bindings/arm/cpus.yaml

@@ -165,6 +165,7 @@ properties:
       - qcom,krait
       - qcom,kryo
       - qcom,kryo260
+      - qcom,kryo280
       - qcom,kryo385
       - qcom,kryo485
       - qcom,scorpion