dt-bindings: mfd: x-powers,axp152: Document the AXP15060 variant

The X-Powers AXP15060 is a PMIC seen on Starfive Visionfive 2 board. Add
relative compatible item and CPUSLDO support and disables DC-DC
frequency setting for it.
Signed-off-by: Shengyu Qu <wiagn233@outlook.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/TY3P286MB261177CF7AA2959BD9517DA998609@TY3P286MB2611.JPNP286.PROD.OUTLOOK.COM

Documentation/devicetree/bindings/mfd/x-powers,axp152.yaml

@@ -77,7 +77,9 @@ allOf:
       properties:
         compatible:
           contains:
-            const: x-powers,axp313a
+            enum:
+              - x-powers,axp313a
+              - x-powers,axp15060
 
     then:
       properties:
@@ -97,6 +99,7 @@ properties:
           - x-powers,axp806
           - x-powers,axp809
           - x-powers,axp813
+          - x-powers,axp15060
       - items:
           - const: x-powers,axp228
           - const: x-powers,axp221
@@ -265,7 +268,7 @@ properties:
           Defines the work frequency of DC-DC in kHz.
 
     patternProperties:
-      "^(([a-f])?ldo[0-9]|dcdc[0-7a-e]|ldo(_|-)io(0|1)|(dc1)?sw|rtc(_|-)ldo|drivevbus|dc5ldo)$":
+      "^(([a-f])?ldo[0-9]|dcdc[0-7a-e]|ldo(_|-)io(0|1)|(dc1)?sw|rtc(_|-)ldo|cpusldo|drivevbus|dc5ldo)$":
         $ref: /schemas/regulator/regulator.yaml#
         type: object
         unevaluatedProperties: false