media: dt-bindings: samsung,s5p-mfc: Fix iommu properties schemas

The iommus and iommu-names property schemas have several issues. First,
'iommus-names' in the if/then schemas is the wrong name. As all the names
are the same, they can be defined at the top level instead. Then the
if/then schemas just need to define how many entries. The iommus if/then
schemas are also redundant. Best I can tell, the desire was to require 2
entries for "samsung,exynos5433-mfc", "samsung,mfc-v5", "samsung,mfc-v6",
and "samsung,mfc-v8".

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Aakarsh Jain <aakarsh.jain@samsung.com>
Link: https://lore.kernel.org/r/20231214195553.862920-1-robh@kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>

Documentation/devicetree/bindings/media/samsung,s5p-mfc.yaml

@@ -49,7 +49,9 @@ properties:
 
   iommu-names:
     minItems: 1
-    maxItems: 2
+    items:
+      - const: left
+      - const: right
 
   power-domains:
     maxItems: 1
@@ -84,7 +86,7 @@ allOf:
             - const: sclk_mfc
         iommus:
           maxItems: 1
-        iommus-names: false
+        iommu-names: false
 
   - if:
       properties:
@@ -102,11 +104,9 @@ allOf:
             - const: aclk
             - const: aclk_xiu
         iommus:
-          maxItems: 2
-        iommus-names:
-          items:
-            - const: left
-            - const: right
+          minItems: 2
+        iommu-names:
+          minItems: 2
 
   - if:
       properties:
@@ -123,11 +123,9 @@ allOf:
             - const: mfc
             - const: sclk_mfc
         iommus:
-          maxItems: 2
-        iommus-names:
-          items:
-            - const: left
-            - const: right
+          minItems: 2
+        iommu-names:
+          minItems: 2
 
   - if:
       properties:
@@ -144,11 +142,9 @@ allOf:
           items:
             - const: mfc
         iommus:
-          maxItems: 2
-        iommus-names:
-          items:
-            - const: left
-            - const: right
+          minItems: 2
+        iommu-names:
+          minItems: 2
 
   - if:
       properties:
@@ -161,9 +157,6 @@ allOf:
         clocks:
           minItems: 1
           maxItems: 2
-        iommus:
-          minItems: 1
-          maxItems: 2
 
 examples:
   - |