dt-bindings: mfd: samsung,s5m8767: Simplify excluding properties

Mutually exclusive s5m8767,pmic-buck[234]-uses-gpio-dvs properties can
be written simpler, with half of the lines of code.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20230619101424.25897-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Lee Jones <lee@kernel.org>

Documentation/devicetree/bindings/mfd/samsung,s5m8767.yaml

@@ -153,29 +153,18 @@ dependencies:
 additionalProperties: false
 
 allOf:
-  - if:
+  - not:
       required:
         - s5m8767,pmic-buck2-uses-gpio-dvs
-    then:
-      properties:
-        s5m8767,pmic-buck3-uses-gpio-dvs: false
-        s5m8767,pmic-buck4-uses-gpio-dvs: false
-
-  - if:
+        - s5m8767,pmic-buck3-uses-gpio-dvs
+  - not:
+      required:
+        - s5m8767,pmic-buck2-uses-gpio-dvs
+        - s5m8767,pmic-buck4-uses-gpio-dvs
+  - not:
       required:
         - s5m8767,pmic-buck3-uses-gpio-dvs
-    then:
-      properties:
-        s5m8767,pmic-buck2-uses-gpio-dvs: false
-        s5m8767,pmic-buck4-uses-gpio-dvs: false
-
-  - if:
-      required:
         - s5m8767,pmic-buck4-uses-gpio-dvs
-    then:
-      properties:
-        s5m8767,pmic-buck2-uses-gpio-dvs: false
-        s5m8767,pmic-buck3-uses-gpio-dvs: false
 
 examples:
   - |