dt-bindings: cpufreq: qcom-hw: Document Shikra CPUFREQ Hardware

The Qualcomm Shikra SoCs use RIMPS (RISC V based Integrated Manager for
Power States) hardware for cpufreq scaling, which is functionally similar
to EPSS, but supports only up to 12 frequency lookup table (LUT) entries.

Signed-off-by: Imran Shaik <imran.shaik@oss.qualcomm.com>

Author: imrashai

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

@@ -53,6 +53,12 @@ properties:
               - qcom,sm8650-cpufreq-epss
           - const: qcom,cpufreq-epss
 
+      - description: RIMPS CPUFREQ HW
+        items:
+          - enum:
+              - qcom,shikra-cpufreq-rimps
+          - const: qcom,cpufreq-rimps
+
   reg:
     minItems: 1
     items:
@@ -143,6 +149,7 @@ allOf:
               - qcom,sc8280xp-cpufreq-epss
               - qcom,sdm670-cpufreq-hw
               - qcom,sdm845-cpufreq-hw
+              - qcom,shikra-cpufreq-rimps
               - qcom,sm4450-cpufreq-epss
               - qcom,sm6115-cpufreq-hw
               - qcom,sm6350-cpufreq-hw