dt-bindings: i2c: qcom-cci: Document x1e80100 compatible

Add the x1e80100 CCI device string compatible.

Signed-off-by: Bryan O'Donoghue <[e-mail]>
Reviewed-by: Krzysztof Kozlowski <[e-mail]>
Link: https://lore.kernel.org/r/20241[e-mail]
Signed-off-by: Andi Shyti <[e-mail]>

Documentation/devicetree/bindings/i2c/qcom,i2c-cci.yaml

···
               - qcom,sm8450-cci
               - qcom,sm8550-cci
               - qcom,sm8650-cci
+              - qcom,x1e80100-cci
           - const: qcom,msm8996-cci # CCI v2
 
   "#address-cells":
···
             enum:
               - qcom,sm8550-cci
               - qcom,sm8650-cci
+              - qcom,x1e80100-cci
     then:
       properties:
         clocks: