nvmem: fixed-cell: Simplify nested if/then schema

There's no reason to have a nested if/then schema as checking for compatible
being present and containing 'mac-base' can all be done in one 'if' schema.
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20240224114516.86365-2-srinivas.kandagatla@linaro.orgSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Documentation/devicetree/bindings/nvmem/layouts/fixed-cell.yaml

@@ -36,20 +36,18 @@ properties:
 
 allOf:
   - if:
+      properties:
+        compatible:
+          contains:
+            const: mac-base
       required: [ compatible ]
     then:
-      if:
-        properties:
-          compatible:
-            contains:
-              const: mac-base
-      then:
-        properties:
-          "#nvmem-cell-cells":
-            description: The first argument is a MAC address offset.
-            const: 1
-        required:
-          - "#nvmem-cell-cells"
+      properties:
+        "#nvmem-cell-cells":
+          description: The first argument is a MAC address offset.
+          const: 1
+      required:
+        - "#nvmem-cell-cells"
 
 required:
   - reg