dt-bindings: Fix erroneous 'additionalProperties'

There's several cases of json-schema 'additionalProperties' at the wrong
indentation level which has the effect of making them DT properties. This
is harmless, but let's fix them so a meta-schema check for this can be
added.

In all the cases, either the 'additionalProperties' was extra or doesn't
work because there's a $ref to more properties. In the latter case, we
can use 'unevaluatedProperties' instead.
Reported-by: Iskren Chernev <iskren.chernev@gmail.com>
Cc: Lee Jones <lee.jones@linaro.org>
Cc: Saravanan Sekar <sravanhome@gmail.com>
Cc: Liam Girdwood <lgirdwood@gmail.com>
Acked-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Rob Herring <robh@kernel.org>

Documentation/devicetree/bindings/mfd/st,stpmic1.yaml

@@ -259,8 +259,6 @@ properties:
 
     additionalProperties: false
 
-  additionalProperties: false
-
 additionalProperties: false
 
 required:

Documentation/devicetree/bindings/regulator/mps,mp5416.yaml

@@ -37,7 +37,6 @@ properties:
         type: object
 
     additionalProperties: false
-  additionalProperties: false
 
 required:
   - compatible

Documentation/devicetree/bindings/regulator/mps,mpq7920.yaml

@@ -75,7 +75,8 @@ properties:
             description: |
               disables over voltage protection of this buck
 
-      additionalProperties: false
+        unevaluatedProperties: false
+
     additionalProperties: false
 
 required:

Documentation/devicetree/bindings/regulator/rohm,bd71828-regulator.yaml

@@ -35,6 +35,8 @@ patternProperties:
         description:
           should be "ldo1", ..., "ldo7"
 
+    unevaluatedProperties: false
+
   "^BUCK[1-7]$":
     type: object
     allOf:
@@ -103,5 +105,7 @@ patternProperties:
 
     required:
       - regulator-name
-  additionalProperties: false
+
+    unevaluatedProperties: false
+
 additionalProperties: false

Documentation/devicetree/bindings/regulator/rohm,bd71837-regulator.yaml

@@ -41,6 +41,8 @@ patternProperties:
         description:
           should be "ldo1", ..., "ldo7"
 
+    unevaluatedProperties: false
+
   "^BUCK[1-8]$":
     type: object
     allOf:
@@ -99,5 +101,7 @@ patternProperties:
 
     required:
       - regulator-name
-  additionalProperties: false
+
+    unevaluatedProperties: false
+
 additionalProperties: false

Documentation/devicetree/bindings/regulator/rohm,bd71847-regulator.yaml

@@ -40,6 +40,8 @@ patternProperties:
         description:
           should be "ldo1", ..., "ldo6"
 
+    unevaluatedProperties: false
+
   "^BUCK[1-6]$":
     type: object
     allOf:
@@ -93,5 +95,7 @@ patternProperties:
 
     required:
       - regulator-name
-  additionalProperties: false
+
+    unevaluatedProperties: false
+
 additionalProperties: false