dt-bindings: cpufreq: qcom-cpufreq-nvmem: Document krait-cpu

Document newly introduced operating-points-v2-krait-cpu compatible to
the list of accepted compatible for opp-v2-kryo-cpu nodes.

Signed-off-by: Christian Marangi <[e-mail]>
Acked-by: Rob Herring <[e-mail]>
Signed-off-by: Viresh Kumar <[e-mail]>

Documentation/devicetree/bindings/cpufreq/qcom-cpufreq-nvmem.yaml

···
       - if:
           properties:
             compatible:
-              const: operating-points-v2-kryo-cpu
+              enum:
+                - operating-points-v2-krait-cpu
+                - operating-points-v2-kryo-cpu
         then:
           $ref: /schemas/opp/opp-v2-kryo-cpu.yaml#