dt-bindings: crypto: add sam9x7 in Atmel TDES

Add DT bindings for atmel TDES.
Signed-off-by: Varshini Rajendran <varshini.rajendran@microchip.com>
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Tudor Ambarus <tudor.ambarus@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

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

@@ -12,7 +12,11 @@ maintainers:
 
 properties:
   compatible:
-    const: atmel,at91sam9g46-tdes
+    oneOf:
+      - const: atmel,at91sam9g46-tdes
+      - items:
+          - const: microchip,sam9x7-tdes
+          - const: atmel,at91sam9g46-tdes
 
   reg:
     maxItems: 1