dt-bindings: nvmem: sl28cpld: add sa67mcu compatible

The Kontron SMARC-sAM67 has the same nvmem layout as the SMARC-sAL28. To
To be prepared for any board specific quirks, add a specific compatible.

Signed-off-by: Michael Walle <[e-mail]>
Acked-by: Krzysztof Kozlowski <[e-mail]>
Signed-off-by: Srinivas Kandagatla <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

Documentation/devicetree/bindings/nvmem/layouts/kontron,sl28-vpd.yaml

···
 
 properties:
   compatible:
-    const: kontron,sl28-vpd
+    oneOf:
+      - items:
+          - enum:
+              - kontron,sa67-vpd
+          - const: kontron,sl28-vpd
+      - const: kontron,sl28-vpd
 
   serial-number:
     type: object