dt-bindings: at24: Rework special case compatible handling

Sort the compatible values for the special cases by EEPROM size, like is
done for the normal cases.
Combine entries with a common fallback using enums, to compact the
table.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>

Author: geertu

Documentation/devicetree/bindings/eeprom/at24.yaml

@@ -95,17 +95,20 @@ properties:
       # These are special cases that don't conform to the above pattern.
       # Each requires a standard at24 model as fallback.
       - items:
-          - const: nxp,se97b
-          - const: atmel,24c02
+          - enum:
+              - rohm,br24g01
+              - rohm,br24t01
+          - const: atmel,24c01
       - items:
-          - const: onnn,cat24c04
-          - const: atmel,24c04
+          - enum:
+              - nxp,se97b
+              - renesas,r1ex24002
+          - const: atmel,24c02
       - items:
-          - const: onnn,cat24c05
+          - enum:
+              - onnn,cat24c04
+              - onnn,cat24c05
           - const: atmel,24c04
-      - items:
-          - const: renesas,r1ex24002
-          - const: atmel,24c02
       - items:
           - const: renesas,r1ex24016
           - const: atmel,24c16
@@ -115,12 +118,6 @@ properties:
       - items:
           - const: renesas,r1ex24128
           - const: atmel,24c128
-      - items:
-          - const: rohm,br24g01
-          - const: atmel,24c01
-      - items:
-          - const: rohm,br24t01
-          - const: atmel,24c01
 
   label:
     description: Descriptive name of the EEPROM.