dt-bindings: eeprom/at24: Add samsung,s524ad0xd1 compatible

The samsung,s524ad0xd1 compatible is in use, but not documented. According
to arch/arm/mach-s3c/mach-smdk6410.c, the samsung,s524ad0xd1 is compatible
with the 24c128. As the schema requires a fallback compatible to the
corresponding Atmel compatible, 'atmel,24c128' is added as a fallback.

Signed-off-by: Rob Herring <robh@kernel.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Bartosz Golaszewski <brgl@bgdev.pl>
Link: https://lore.kernel.org/r/20220426175938.2262966-1-robh@kernel.org

Documentation/devicetree/bindings/eeprom/at24.yaml

@@ -120,7 +120,9 @@ properties:
           - const: giantec,gt24c32a
           - const: atmel,24c32
       - items:
-          - const: renesas,r1ex24128
+          - enum:
+              - renesas,r1ex24128
+              - samsung,s524ad0xd1
           - const: atmel,24c128
 
   label:

Documentation/devicetree/bindings/i2c/samsung,s3c2410-i2c.yaml

@@ -123,7 +123,7 @@ examples:
         samsung,i2c-slave-addr = <0x66>;
 
         eeprom@50 {
-            compatible = "samsung,s524ad0xd1";
+            compatible = "samsung,s524ad0xd1", "atmel,24c128";
             reg = <0x50>;
         };
     };