dt-bindings: soc: fsl: cpm_qe: cpm1-scc-qmc: Add 'additionalProperties: false' in child nodes

Additional properties in child node should not be allowed.

Prevent them adding 'additionalProperties: false'
Signed-off-by: Herve Codina <herve.codina@bootlin.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20231011061437.64213-8-herve.codina@bootlin.comSigned-off-by: Rob Herring <robh@kernel.org>

Documentation/devicetree/bindings/soc/fsl/cpm_qe/fsl,cpm1-scc-qmc.yaml

@@ -64,6 +64,7 @@ patternProperties:
     description:
       A channel managed by this controller
     type: object
+    additionalProperties: false
 
     properties:
       reg: