dt-bindings: crypto: atmel,at91sam9g46-aes: add microchip,lan9691-aes

Document Microchip LAN969x AES compatible.

Signed-off-by: Robert Marko <robert.marko@sartura.hr>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Claudiu Beznea <claudiu.beznea@tuxon.dev>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

Author: robimarko

Documentation/devicetree/bindings/crypto/atmel,at91sam9g46-aes.yaml

@@ -16,6 +16,7 @@ properties:
       - const: atmel,at91sam9g46-aes
       - items:
           - enum:
+              - microchip,lan9691-aes
               - microchip,sam9x7-aes
               - microchip,sama7d65-aes
           - const: atmel,at91sam9g46-aes