dt-bindings: iio: Fix adi, ltc2983 uint64-matrix schema constraints

'minItems' and 'maxItems' apply at the same level as 'items' schemas as
the keywords apply to arrays. What's currently defined is a 3
dimensional matrix with the outer size being undefined. To fix this,
minItems/maxItems needs to be moved up a level.

With this fixed, the example fails validation. For matrix types, the dts
syntax must use brackets (<>) matching the schema definition. In this
case, the inner array size is 2 elements, so let's add the correct
bracketing.

Fixes: 3986a14 ("dt-bindings: iio: Add ltc2983 documentation")
Cc: "Nuno Sá" <[email protected]>
Cc: Jonathan Cameron <[email protected]>
Cc: Hartmut Knaack <[email protected]>
Cc: Lars-Peter Clausen <[email protected]>
Cc: Peter Meerwald-Stadler <[email protected]>
Cc: [email protected]
Signed-off-by: Rob Herring <[email protected]>
Acked-by: Nuno Sá <[email protected]>
Acked-by: Jonathan Cameron <[email protected]>
Signed-off-by: Rob Herring <[email protected]>

Documentation/devicetree/bindings/iio/temperature/adi,ltc2983.yaml

@@ -123,12 +123,11 @@ patternProperties:
           sign.
         allOf:
           - $ref: /schemas/types.yaml#/definitions/uint64-matrix
+        minItems: 3
+        maxItems: 64
         items:
-          minItems: 3
-          maxItems: 64
-          items:
-            minItems: 2
-            maxItems: 2
+          minItems: 2
+          maxItems: 2
 
   "^diode@":
     type: object
@@ -328,12 +327,11 @@ patternProperties:
           78 and 79.
         allOf:
           - $ref: /schemas/types.yaml#/definitions/uint64-matrix
+        minItems: 3
+        maxItems: 64
         items:
-          minItems: 3
-          maxItems: 64
-          items:
-            minItems: 2
-            maxItems: 2
+          minItems: 2
+          maxItems: 2
 
       adi,custom-steinhart:
         description:
@@ -465,16 +463,16 @@ examples:
                         adi,sensor-type = <9>; //custom thermocouple
                         adi,single-ended;
                         adi,custom-thermocouple = /bits/ 64
-                                 <(-50220000) 0
-                                  (-30200000) 99100000
-                                  (-5300000) 135400000
-                                  0 273150000
-                                  40200000 361200000
-                                  55300000 522100000
-                                  88300000 720300000
-                                  132200000 811200000
-                                  188700000 922500000
-                                  460400000 1000000000>; //10 pairs
+                                 <(-50220000) 0>,
+                                 <(-30200000) 99100000>,
+                                 <(-5300000) 135400000>,
+                                 <0 273150000>,
+                                 <40200000 361200000>,
+                                 <55300000 522100000>,
+                                 <88300000 720300000>,
+                                 <132200000 811200000>,
+                                 <188700000 922500000>,
+                                 <460400000 1000000000>; //10 pairs
                };
 
         };