dt-bindings: crypto: fsl-imx-sahara: Fix the number of irqs

i.MX27 has only one Sahara interrupt. i.MX53 has two.

Describe this difference.
Signed-off-by: Fabio Estevam <festevam@denx.de>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

Documentation/devicetree/bindings/crypto/fsl-imx-sahara.yaml

@@ -19,7 +19,10 @@ properties:
     maxItems: 1
 
   interrupts:
-    maxItems: 1
+    items:
+      - description: SAHARA Interrupt for Host 0
+      - description: SAHARA Interrupt for Host 1
+    minItems: 1
 
   clocks:
     items:
@@ -38,6 +41,23 @@ required:
   - clocks
   - clock-names
 
+allOf:
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - fsl,imx53-sahara
+    then:
+      properties:
+        interrupts:
+          minItems: 2
+          maxItems: 2
+    else:
+      properties:
+        interrupts:
+          maxItems: 1
+
 additionalProperties: false
 
 examples: