dt-bindings: memory-controllers: ingenic,nemc: reference peripheral properties

Ingenic NAND / External Memory Controller has children with peripheral
properties, so it should reference the Memory Controller bus
Peripheral-specific schema.

Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20230713152848.82752-2-krzysztof.kozlowski@linaro.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>

Documentation/devicetree/bindings/memory-controllers/ingenic,nemc.yaml

@@ -39,6 +39,7 @@ properties:
 patternProperties:
   ".*@[0-9]+$":
     type: object
+    $ref: mc-peripheral-props.yaml#
 
 required:
   - compatible

Documentation/devicetree/bindings/memory-controllers/mc-peripheral-props.yaml

@@ -34,6 +34,7 @@ required:
 # The controller specific properties go here.
 allOf:
   - $ref: st,stm32-fmc2-ebi-props.yaml#
+  - $ref: ingenic,nemc-peripherals.yaml#
   - $ref: intel,ixp4xx-expansion-peripheral-props.yaml#
 
 additionalProperties: true