dt-bindings: interrupt-controller: Fix loongson,parent_int_map property schema

'loongson,parent_int_map' is an array, but the schema is defining a matrix resulting in the follow warnings:

Documentation/devicetree/bindings/interrupt-controller/loongson,liointc.example.dt.yaml:
interrupt-controller@3ff01400: loongson,parent_int_map:0: [4043309055] is too short
Documentation/devicetree/bindings/interrupt-controller/loongson,liointc.example.dt.yaml:
interrupt-controller@3ff01400: loongson,parent_int_map:1: [251658240] is too short
Documentation/devicetree/bindings/interrupt-controller/loongson,liointc.example.dt.yaml:
interrupt-controller@3ff01400: loongson,parent_int_map:2: [0] is too short
Documentation/devicetree/bindings/interrupt-controller/loongson,liointc.example.dt.yaml:
interrupt-controller@3ff01400: loongson,parent_int_map:3: [0] is too short

The correct way to define an array is a list in 'items' and/or a size defined by 'minItems' and 'maxItems'.

---
Will take this via the DT tree.

Rob

 .../bindings/interrupt-controller/loongson,liointc.yaml      | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

index 9c6b91fee477..26f1fcf0857a 100644
@@ -56,9 +56,8 @@ properties:
       cell with zero.
     allOf:
       - $ref: /schemas/types.yaml#/definitions/uint32-array
-      - items:
-          minItems: 4
-          maxItems: 4
+      - minItems: 4
+        maxItems: 4
 
 
 required:

2.20.1