dt-bindings: eeprom: at24: Add compatible for Giantec GT24P64A

Add the compatible for another 64Kb EEPROM from Giantec.

Signed-off-by: Luca Weiss <luca.weiss@fairphone.com>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://lore.kernel.org/r/20251210-fp4-cam-prep-v1-1-0eacbff271ec@fairphone.com
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>

Author: lweiss-fairphone

Documentation/devicetree/bindings/eeprom/at24.yaml

@@ -134,6 +134,7 @@ properties:
       - items:
           - enum:
               - belling,bl24s64
+              - giantec,gt24p64a
               - onnn,n24s64b
               - puya,p24c64f
           - const: atmel,24c64