Documentation/bindings: crypto: remove the dma-mask property

The dma-mask property is broken and was removed in the device trees
having a safexcel-eip197 node and in the safexcel cryptographic
driver. This patch removes the dma-mask property from the documentation
as well.

Signed-off-by: Antoine Tenart <[e-mail]>
Acked-by: Arnd Bergmann <[e-mail]>
Signed-off-by: Herbert Xu <[e-mail]>

Documentation/devicetree/bindings/crypto/inside-secure-safexcel.txt

···
 
 Optional properties:
 - clocks: Reference to the crypto engine clock.
-- dma-mask: The address mask limitation. Defaults to 64.
 
 Example:
 
···
 		interrupt-names = "mem", "ring0", "ring1", "ring2", "ring3",
 				  "eip";
 		clocks = <&cpm_syscon0 1 26>;
-		dma-mask = <0xff 0xffffffff>;
 		status = "disabled";
 	};