dt-bindings: eeprom: at24: allow NVMEM cells based on old syntax

This binding supported NVMEM cells as subnodes and that syntax is used
by few in-kenel DTS files. Modify binding to allow it.

Reported-by: Rob Herring <[email protected]>
Fixes: c533072 ("dt-bindings: nvmem: move deprecated cells binding to its own file")
Signed-off-by: Rafał Miłecki <[email protected]>
Reviewed-by: Rob Herring <[email protected]>
Acked-by: Bartosz Golaszewski <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>

Author: Rafał Miłecki

Documentation/devicetree/bindings/eeprom/at24.yaml

@@ -12,6 +12,7 @@ maintainers:
 
 allOf:
   - $ref: /schemas/nvmem/nvmem.yaml
+  - $ref: /schemas/nvmem/nvmem-deprecated-cells.yaml
 
 select:
   properties: