dt-bindings: soc: fsl: narrow regex for unit address to hex numbers

Regular expression used to match the unit address part should not allow
non-hex numbers.

Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20240325104833.33372-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Rob Herring <robh@kernel.org>

Documentation/devicetree/bindings/soc/fsl/fsl,layerscape-dcfg.yaml

@@ -51,7 +51,7 @@ properties:
   ranges: true
 
 patternProperties:
-  "^clock-controller@[0-9a-z]+$":
+  "^clock-controller@[0-9a-f]+$":
     $ref: /schemas/clock/fsl,flexspi-clock.yaml#
 
 required:

Documentation/devicetree/bindings/soc/fsl/fsl,layerscape-scfg.yaml

@@ -41,7 +41,7 @@ properties:
   ranges: true
 
 patternProperties:
-  "^interrupt-controller@[a-z0-9]+$":
+  "^interrupt-controller@[a-f0-9]+$":
     $ref: /schemas/interrupt-controller/fsl,ls-extirq.yaml#
 
 required: